A Message from the President · NTT Leasing Co., Ltd. NTT Auto Leasing Co., Ltd. NTT FINANCE JAPAN...

As symbolized by the phrase, ‘IT (information technology) revolution,’ society and industryare currently undergoing a major transformation. The market environment for the globalinformation sharing industry in particular is changing more rapidly than we could possiblyhave anticipated. Increases in the number of mobile communications subscribers and thespread of the Internet have been nothing short of spectacular. In the midst of thisunprecedented change, the NTT Group will continue our contribution to the economic andsocial IT revolution through our efforts to provide faster, more economical and diversifiedIP-based service networks, both wireless and wired.

From the standpoint of the global environment, there are two sides to the IT revolution.One is that it generates new environmental loads. To maximize the benefits of IT, we needenergy and resources to install and operate new networks, servers and terminals. On the otherhand, implementation of IT can enhance the efficiency of production and distribution, thusreducing the overall amount of energy and resources consumed. By sharing environmentalinformation, we can foster a common perception of the importance of the environmentthrough various educational and awareness-building activities. As a leading member of theglobal information sharing industry, we at the NTT Group consider it our socialresponsibility as well as our business to contribute to the widespread dissemination ofenvironmental information.

The NTT Group has been making concentrated efforts to actively address globalenvironmental issues. In 1991, we established the NTT Global Environment Charter,introducing measures to save paper resources and reduce CO2 emissions. To coincide withthe reorganization of the NTT Group in July 1999, we established the comprehensive NTTGroup Ecology Program 21, which outlines our basic policies on environmental protection.The program encompasses the NTT Global Environment Charter, targets for action plans forthe entire NTT Group, the establishment of NTT Group Ecology Community Plazas, andresearch and development of state-of-the-art environmental technologies.

In the course of our business activities, the NTT Group consumes a great amount of paperand energy and generates a huge volume of waste. The NTT Group Ecology Program 21establishes targets for specific action plans to address these and other pressing environmentalconcerns. Our NTT East Iwate Branch and NTT West Shiga Branch have establishedEcology Community Plazas to work with citizens in each region in promoting environmentalawareness. Each group company is also working to reduce environmental loads througheffective implementation of IT. Prior to our 1999 reorganization, we established twodedicated research laboratories—the Lifestyle and Environmental Technology Laboratoriesand the Telecommunications Energy Laboratories—which continue to support our R&Defforts at the holding company level.

This report provides an overview of our ongoing efforts to address environmental issues,with a focus on our activities during fiscal 1999. We hope it will help you to gain a betterunderstanding of our activities. We welcome your comments and opinions.

A Message from the President

The NTT Group utilizes state-of-the-art informationsharing technologies to contribute to a better globalenvironment.

Jun-ichiro Miyazu President, Nippon Telegraph andTelephone Corporation

5

NTT West Corporation NTT DoCoMo, Inc. NTT DATA CorporationNTT Communications Corporation

Nippon Telegraph and Telephone Corporation (the holding company)

Information Sharing Laboratory Group

Cyber Communications Laboratory Group

Cyber Solutions Laboratories

NTT East Corporation

NTT America, Inc.

NTT Rocky, Inc.

NTT A&T Investment, Inc.

ntta.com, inc.

Teletechno, Inc.

Milletechno, Inc.

Autoweb Communications, Inc.

NTT Australia Pty. Ltd.

NTT Europe Ltd.

NTT FRANCE SA

NTT Deutschland GmbH

NTT MSC Sdn. Bhd

NTT Singapore Pte. Ltd.

NTT (HONG KONG) LIMITED

NTT Taiwan Ltd.

Notes

= NTT (the holding company) laboratories

NTT Group consolidated companies

Service Integration Laboratories

Network Service Systems Laboratories

Access Network Service Systems Laboratories

Information Sharing Platform Laboratories

Network Innovation Laboratories

Lifestyle and Environmental Technology Laboratories

Science & Core Technology Laboratory Group

Telecommunications Energy Laboratories

Photonics Laboratories

Communication Science Laboratories

Basic Research Laboratories

NTT-ME Hokkaido Corporation

NTT-ME Tohoku Corporation

NTT-ME Corporation

NTT DIRECTORY SERVICES CO.

NTT Teleca Corporation

Cyber Space Laboratories

NTT-ME Tokai Corporation

NTT-ME Hokuriku Corporation

NTT-ME Kansai Corporation

NTT-ME Chugoku Corporation

NTT-ME Shikoku Corporation

NTT-ME Kyushu Corporation

NTT DO CO., LTD. NTT A&A Investment, Inc.

NTT Multimedia Communications Laboratories, Inc.

NTT Worldwide Telecommunications Corporation

NTT KOREA Co., Ltd.

NTT do Brasil Telecomunicações Ltda.

NTT WORLD ENGINEERING MARINE CORPORATION

NTT DoCoMo Hokkaido, Inc.

NTT DoCoMo Tohoku, Inc.

NTT DoCoMo Tokai, Inc.

NTT DoCoMo Hokuriku, Inc.

NTT DoCoMo Kansai, Inc.

NTT DoCoMo Chugoku, Inc.

NTT DoCoMo Shikoku, Inc.

NTT DoCoMo Kyushu, Inc.

NTT FACILITIES, INC.

NTT Urban Development Co.

NTT Communicationware Corporation

NTT Leasing Co., Ltd.

NTT Auto Leasing Co., Ltd.

NTT FINANCE JAPAN CO., LTD.

NTT Software Corporation

NTT Electronics Corporation

NTT Advanced Technology Corporation

NTT INTELLIGENT TECHNOLOGY CO., LTD.

Group companies under major consolidated subsidiaries

= Major consolidated subsidiaries

=

NTT (the holding company) Group companies not under major consolidated subsidiaries=

Consolidated Data

Operating revenues Operating income Net income

Total assets Share capital

R&D expenditures

Capital investments

Number of employees

12

10

8

6

4

2

0

800

700

600

500

400

300

200

100

0

600

500

400

300

200

100

0

201816141210

86420

3,500

3,000

2,500

2,000

1,500

1,000

500

0

7,000

6,000

5,000

4,000

3,000

2,000

1,000

0

(fiscal year)

1995 1996 1997 1998 1999

1995 1996 1997 1998 1999

1995 1996 1997 1998 1999 1995 1996 1997 1998 1999

1995 1996 1997 1998 1999 1995 1996 1997 1998 1999

(fiscal year)

1995 1996 1997 1998 1999 1995 1996 1997 19981999

300

250

200

150

100

50

0

400

350

300

250

200

150

100

50

0

(trillion yen)

(trillion yen)

(billion yen)

(billion yen)

(billion yen) (billion yen)

(billion yen)

(fiscal year)

(fiscal year)

(fiscal year)

(fiscal year)

(fiscal year)

(1,000)

(fiscal year)

Billion = 1,000 millionTrillion = 1,000,000 million

4 NTT Group Environmental Protection Activity Report 2000 NTT Group Environmental Protection Activity Report 2000

● Profile of Nippon Telegraph and Telephone Corporation (as of March 31, 2000)

Corporate name: Nippon Telegraph and Telephone Corporation (NTT)Headquarters: 3-1, Otemachi 2-chome, Chiyoda-ku, Tokyo 100-8116 JapanEstablished: April 1, 1985Capital: ¥795,600,000,000Employees: 3,475URL: http://www.ntt.co.jp/

● Consolidated Profile (as of March 31, 2000)

Employees: 224,000Number of companies: 56 (refer to organizational chart, page 5)

The NTT Group, organized under a holding company structure with NTT (the holding company) at the core, offers a wide range of customerservices through wholly-owned subsidiaries NTT East, NTT West, NTT Communications, NTT DoCoMo, and NTT DATA. Group companiessuch as NTT Communicationware, NTT-ME, and NTT Facilities maintain resources for the entire group, including software, communicationfacilities, power facilities and buildings. Each subsidiary actively explores new business possibilities and endeavors to expand its business domains.These efforts are supported by two types of research and development: basic R&D, centralized at the holding company level, and specificapplication R&D engaged in by each subsidiary. While it is unusual for a holding company to operate its own R&D department, NTT considersR&D a driving force for the management and development of the NTT Group today and into the future.

1. The above are consolidated subsidiaries as of March 31, 2000. Company names are current as of April 1, 2000.2. Cyber Communications Laboratory Group, Information Sharing Laboratory Group and Science & Core Technology

Laboratory Group belong to NTT (the holding company).

Corporate & Group Profile Structure of the NTT Group

CO2, etc.

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Ultraviolet rays

Destruction of the ozone layer

Rain water

Power station

Wind power/solar power generation

Electricity

Water company

Water

Raw materials

Products Town Pages

Factories

CO2, methane gas, etc.

Recycled resources

Communication equipment

Toxic wasteSewage treatment

Incinerator

Municipal waste

Permitted landfill

Pollution by ships

Greenhouse effect gases Communication satellites

Global warming

Ship phones

Waste heat/waste gas Airplane phones

Utilization of waste heat

Mobile units

Car phones

Tree planting

Utilization of rain water/waste water Low-pollution vehicles

Public telephones

Telephones

Offices

TV conferences

Area of NTT Group operations

Cable tunnels

Waste water Fuels

6 NTT Group Environmental Protection Activity Report 2000

Conceptualization of environmental issues affecting the NTT Group

Foreword● The period of statistics included in this report covers the fiscal year 1999 (April 1999 to March 2000); company names are current as of

April 1, 2000.● Data for the NTT Group for the fiscal year 1999 include NTT (the holding company), NTT East, NTT West, NTT Communications, nine

NTT DoCoMo companies, NTT DATA, NTT Facilities, and NTT Communicationware. Data up to the year 1998 are mainly taken from theformer NTT prior to its reorganization. Please refer to the appendix for details.

● Starting with Report 2000, the volume of CO2 emissions is expressed in CO2 equivalent weight.CO2 equivalent weight is obtained by multiplying by 3.67 the volume of CO2 emissions expressed in C (carbon) equivalent weight in previousreports up to 1999.

● Information on NTT Group environmental activities is also available on the Internet.http://www.ntt.co.jp/kankyo/e/index.html

The NTT Group provides a wide range of advanced information sharing services through operations including telecommunications,mobile telecommunications, data communications, Internet services, etc. We are well aware that such business activities may have asignificant effect on environmental issues, such as air, water, resources, waste, soil, local communities, etc. The image below is aconceptualization of the relationships between NTT Group business activities and the environment. We have identified paperresource management, CO2 emissions, and waste treatment as primary areas which have a significant impact on the environment,established targets for our main action plans, and are engaged in the development of effective measures to deal with these problems.

Overview of each Chapter

is a summary of NTT Group environmental protection activities, focusing on the NTT Group Ecology Program 21.

describes basic policies which are shared by all NTT Group companies.

describes NTT Group responses to specific environmental issues.

explains various research and development projects for environmental protection.

describes internal and external communication activities.

introduces the Group’s social contributions related to environmental protection.

Environmental Issues Affecting the NTT Group

The NTT Group’s Basic Approach to Environmental Protection

● NTT Group Ecology Program 21 18● Our Organization for Promoting Environmental Protection 11● Targets for Major Action Plans 12● PDCA for Promotion of Environmental Protection 14

qNTT Group Global Environment Charter

eR&D in state-of-the-art environmental

technologies

wContribution to local environmental

protection

Contribution to the formation of broad-based environmentally aware communities

Contribution to the formation of a global environmentally aware community

NTT

Group Ecology Community Plazas

The NTT Group recognizes environmental preservation as a major issue to be tackled on a global scale. The NTT Group Ecology Program outlines our basic strategy for environmental protection activities and forms the framework for our efforts to contribute to the formation of a global ecology community.

Contribution to local communities Unified awareness within the Group Contribution through state-of-the-art information sharing technology

NTT Group Global Environment Charter

NTT Group Global Environment Charter qNTT Group Global

Environment Charter

eR&D in state-of-the-art environmental

technologies

wContribution to local environmental

protection



NTT Group Ecology Community Plazas

12 3

NTT Group’s Basic Approach to Environmental Protection1

Three Main Components of the NTT Group Ecology Program 21

8 NTT Group Environmental Protection Activity Report 2000 9NTT Group Environmental Protection Activity Report 2000

http://www.ntt.co.jp/kankyo/e/2000report/1/111.html

1. NTT Group Ecology Program 211. NTT Group Ecology Program 21

The NTT Group will promote the develop-ment of a wide range of diversified localcommunity-based environmental protectionactivities.

NTT Group Ecology Community Plazaswill be established as bases to contribute tothe creation of environmentally aware com-munities. These Community Plazas willserve as hubs for the dissemination andexchange of information on environmentalissues. We plan to establish model brancheswhere we will implement a diverse and var-ied range of environmental activities. Basedon assessment of the effects of these activi-ties, we hope to extend them to otherbranches throughout the country.

We shall establish a basic unified stance topromote environmental awareness within theNTT Group. Based on targets established inmajor action plans (basic policies), we shallcarry out coordinated efforts as a responsiblebusiness enterprise to efficiently managepaper resources and reduce CO2 emissionsand waste volumes, with 2010 as the target year.

As a corporate group involved in the infor-mation sharing industry, we shall pursuereduction of environmental impact throughstate-of-the-art technologies, while simulta-neously conducting R&D to contribute tothe development of new and more rewardinglifestyles.(Examples of R&D projects)● Ecology networks ● Nitrogen dioxidemonitoring systems ● Electronic commerce● Intelligent transport systems (ITS) ● Odor-based water quality monitoring systems ● Long-life nickel metal hydride batteries ● Stand-alone photovoltaic power systems● Recycling of plastic using supercriticalwater

We need to recognize the extent and gravity of current environmental issues, including global warming, ozone layer depletion,destruction of the tropical rain forests, desertification, acid rain, and contamination of the oceans.

We must also recognize the degree to which these issues are the direct result of current societal systems, which are intimatelylinked to corporate activities. As a business enterprise, we have a responsibility to dedicate ourselves to harmonizing ourbusiness activities with global efforts to protect the environment in order to realize sustainable growth and to eliminate problemsfor future generations. Based on this fundamental recognition, we here establish the NTT Group Global Environment Charter toclarify our basic policies and actions taken concerning these issues.

Basic PrincipleTo ensure the harmonious co-existence of people with nature and to achieve sustainable growth, the NTT Groupwill do our utmost to protect the global environment in all our corporate activities.

Basic Policies1. Compliance with laws and regulations and fulfillment of social responsibilities

● To observe all laws and regulations regarding environmental protection issues and to carry out ourresponsibilities as global corporate citizens.

2. Reducing environmental loads● To establish action plans for energy conservation (reduction of greenhouse gas emissions),

resource conservation (conservation of materials such as paper), and waste reduction, and to strive to makecontinuous improvements.

3. Establishing and maintaining environmental management systems● To establish an environmental management system enabling each business unit to pursue voluntary

environmental protection activities.4. Developing environmental technologies

● To contribute to the reduction of environmental load through various areas of research and development,including multimedia services.

5. Social contribution efforts● To promote daily environmental protection efforts in coordination with citizens and government agencies.

6. Disclosure of environmental information● To enhance both internal and external communications through the disclosure of environmental information.

NTT Group’s Targets for Major Action Plans (refer to page 12)


Fig. 1.2-1 NTT Group organization for promoting environmental protection

President

Board of directors

Lifestyle and Environmental Technology LaboratoriesR&D for environmental technologies, such as ecology networks and environmental information terminals, etc.Telecommunications Energy LaboratoriesR&D for next-generation energy technologies, including energy conservation measures and new energies.

CO2 Reduction Committee

Waste Disposal and Recycling Committee

PCB Storage and Handling Committee

Environmental Technology R&D Committee

Environmental Protection Promotion Advisory Committee

Environmental Load Reduction Network Committee

NTT Group Global Environmental Protection Promotion Committee (Meeting director: Yusuke Tachibana, Senior executive vice president)

Environmental annual report compilation project

NTT East Environmental Protection Office

NTT DoCoMo Corporate Citizenship Office

NTT West Environmental Protection Office

NTT Communications Environmental Protection Office

NTT Facilities Environmental Engineering Office

NTT DATA Eco-Activity Promotion Office







1

　NTT Group Global Environment Charter

　R&D in state-of-the-art environmental

technologies

　Contribution to local environmental

protection

　NTT Group Global Environment Charter

NTT Environmental Protection Office(H

oldi

ng C

ompa

ny)

NTT-ME Eco and Volunteer Promotion Department

Gro

up m

embe

r co

mpa

nies

(Chief examiner: Shigehiko Suzuki, Senior vice president,

director, Department III)

　R&D in state-of-the-art environmental

technologies

　Contribution to local environmental

protection


2

1

3

2

1

3


Contribution to Local EnvironmentalProtection“Contribution to local environmental protection” is the second pillarof the NTT Group Ecology Program 21.

As declared in the Basic Policies of the NTT Group GlobalEnvironment Charter, our emphasis lies in activities implemented inclose liaison with local residents and government agencies.

The NTT Group is in the process of establishing model branches,housing Ecology Community Plazas. Our aim for these Plazas is toprovide locations for the development of networks to address globalenvironmental issues on the local level and to provide and exchangeinformation on the environment.

In addition, Group companies are making efforts to contribute tosociety by voluntarily participating in environmental protectionactivities and raising funds for environmental incentives.

More concrete examples of these activities are explained in detailin Chapter 6.

R&D in State-of-the-Art EnvironmentalTechnologiesThe NTT Group is making special efforts in R&D into environ-mental technologies.

Established in January 1999, the Lifestyle and EnvironmentalTechnology Laboratories and the Telecommunications EnergyLaboratories serve as the focal point for these research efforts, withGroup companies as well as each branch also pursuing their ownR&D in various areas related to the environment. R&D projects arelargely classified into two categories: establishing a structure for asustainable society by maximizing the potential of informationtechnology and specific R&D to contribute to the reduction ofenvironmental loads.

The first area of research includes the establishment of ecologicalnetworks, development of nitrogen dioxide monitoring systems,simulations in the reduction of environmental loads viacommunication services such as TV conferencing, experiments onmodel electronic commerce, and development of intelligenttransportation systems (ITS).

The latter includes development of long-life nickel metal hydridebatteries and stand-alone photovoltaic power systems, study ofplastic recycling technology using supercritical water, and develop-ment of fuel modification facilities.

Details of these efforts are described in Chapter 4.

1. NTT Group Ecology Program 212. Our Organization for Promoting Environmental Protection

The NTT Group has established an organization to enable each group company to recognize and confirm the concepts of NTT Group EcologyProgram 21 and take appropriate action to promote environmental protection as a group. (Fig. 1.2-1)

NTT Group Global Environmental Protection Promotion Committee As the supreme decision-making body of NTT Group’s global environmental protection promotion activities, the committee is comprised of directorsresponsible for environmental issues at main Group companies and division heads of NTT (the holding company). This committee prepares basicenvironmental policies, establishes targets for action plans, and evaluates achievements for the entire group. (meets twice)Meeting director: Yusuke Tachibana, Senior executive vice president of NTT (the holding company); chairperson: Shigehiko Suzuki, Senior vice president,director, Department III (R&D Strategy Department) of NTT, head of NTT Environmental Protection Office

NTT Group Environmental Protection AdvisoryCommittee This committee makes inquiries on environmental policies and specificmeasures and provides advisory opinions to the NTT Groupenvironmental protection promotion committee. (meets three times)Chief examiner: Shigehiko Suzuki, Senior vice president, director,Department III, NTT

NTT (the holding company) Environmental Protection Office This office serves as the secretariat for various Group-wide committees.It also oversees various offices and divisions of the NTT Groupcompanies responsible for environmental protection promotion. TheEnvironmental Protection Activity Report is compiled and published by aproject team drawn up by this Office.

CO2 Reduction Committee To achieve the goals of reducing CO2 emissions adopted at the KyotoConference on Prevention of Global Warming of December 1997 (3rdConference of Parties of the United Nations Framework Convention onClimate Change), the committee is responsible for devising basicpolicies, including new measures and reduction goals, to allow the NTTGroup to fulfill its corporate responsibilities. (meets three times)

Environmental Technology R&D Committee This committee is assigned the task of establishing systems capable ofcollecting and distributing environmental information through multimedianetworks, to allow active use of telecommunications technologies forenvironmental protection. (meets eight times)

Waste Disposal and Recycling Committee This committee draws up basic policies on waste reductions, recyclingand green procurement, promoting protective measures from the time ofprocuring materials and components. (meets twice)

Environmental Load Reduction Network Committee The mission of this committee is to reduce negative environmentalimpact of overall network facilities and the way they are operated, and tostudy the possibil i ty of introducing environmental accounting. (meets twice)

PCB Storage and Handling CommitteeAs a major user of equipment which involves PCBs, the committee draftsbasic policies for proper storage of wastes and chemical treatment toneutralize PCBs. (meets twice)

Targets for Action Plans

Items Targets for action plans (set in 1991) Results in 1999

Total virgin pulp consumption is reduced by approx. 28% from 1990.

Total volume of emissions increased by approx. 35% from 1990; however, steadily improving eco-efficiency has resulted in stabilization.

The amount was reduced by approx. 64% from 1990 level.

Completed in 1995.

To reduce total virgin pulp consumption to 1990 levels by 2000.

To reduce CO2 emissions to 1990 levels by 2000.

Use of CFCs to be totally banned in 1995.

To reduce the amount of waste to 1990 levels by 2000.

Paper resource management

Prevention of global warming

Waste management

Protection of ozone layer


第1章� NTT Group’s Basic Approach to Environmental Protection1


(Unit: 1,000 t)

1990 1994 1995 1996 1997 1998 1999 1990 1994 1995 1996 1997 1998 1999

Paper Resource Management

140

120

100

80

60

40

20

0

Fig. 1.3-1 Virgin pulp consumption

Waste Management

600

500

400

300

200

100

0

Fig. 1.3-2 Waste volume

Targets for 2000 (fiscal year)


Office paper Targets for 2000

Telegraph paper

Telephone directories

Targets for 2000 (set in 1991)

(Unit: 1,000 t)

Target for 2000 (set in 1991)

Office products

Construction works

Civil engineering works

Targets for 2000

Communication facilities

0

500

1,000

1,500

2,000

2,500

1990 1994 1995 1996 1997 1998 1999

Fig. 1.3-3 Volume of CO2 emissions Fig. 1.3-4 Environmental efficiency (eco-efficiency)


Prevention of Global Warming

Targets for 2000 (set in 1991)

(unit: 1,000 t – CO2)

Gas/fuel consumption Targets for 2000

Company vehicles

Electricity consumption

Prevention of Global Warming

(sales of 1 million yen/CO2 emission in tons)

1990 1994 1995 1996 1997 1998 19990

1

2

3

4

5

6

Targets for action plans (set in 1999)

Total virgin pulp consumption to be reduced by more than 20% from 1990 levels by 2010.

CO2 emissions to be reduced below 1990 levels by 2010.

Volume of waste to be reduced by more than 85% of 1990 levels by 2010.

Targets for Action Plans



Waste management

Items

3. Targets for Major Action Plans

Targets for Major Action Plans and Achievements for 2000 In 1991, the NTT Group set targets for major action plans including paper resource management, prevention of global warming, wastemanagement, and protection of the ozone layer, to be met by fiscal 2000. Actual results of our efforts are disclosed below.

Regarding protection of the ozone layer, the use of CFCs in new equipment was completely banned in 1995.Regarding paper resource management, prevention of global warming and waste management, target figures have been reviewed and revisedtargets were included in the 1999 NTT Group targets for major action plans to demonstrate our continuing efforts.

As of fiscal 1999, the amount of CO2 emissions exceeded the target set for the year 2000 (at the 1990 level). (Fig. 1.3-3) One of the factors forthis is the expanded business range of the NTT Group. However, sales per unit of CO2 emission, an indication of environmental efficiency (eco-efficiency) show yearly improvement and have stabilized at around ¥4.74 million/t-CO2 since 1996. (Fig. 1.3-4) The NTT Group has thus beenmaking continuous progress in reducing the volume of CO2 emissions since 1991. For 1999, CO2 emitted by NTT Facilities and NTT UrbanDevelopment were included in the figure, thus the increase compared to the previous year.

Setting New Targets for 2010In March 2000, the NTT Group reviewed and revised the targets for major action plans including paper resource management, prevention ofglobal warming and waste management.

3. Targets for Major Action Plans

PLAN

ACTION

CHECK

D OReview of environmental policies, mid-to-long term plans, targets, etc.

Implementation of environ-mental protection activities at each Group company

Environmental audits and self-monitoring at each Group

company or office.

Assessment of implementation status by environmental protection promotion

committees at each Group company

Assessment of implementation status by the NTT Group Global Environmental Protection

Promotion Committee

Fig. 1.4-1 PDCA for promotion of NTT Group environmental protection activities

PLAN

● basic environmental policies ● mid-to-long term plans ● annual plans ● targets.Based on the above, each Group company or office maps out plans for implementation with detailed programs.

In keeping with the NTT Group Corporate Principles and the NTT Global Environment Charter, the NTT Group global environmental protection promotion committee dictates the following:

D O

CHECK

Each Group company or office implements environmental protection activities based on detailed programs.

Each Group company or office conducts self-monitoring and environmental audits by internal environmental protection promotion organizations. Each Group company also works with the NTT Group Global Environmental Protection Promotion Committee to monitor implementation status.

ACTION Results are reflected in basic environmental policies, mid-to-long term plans, annual plans and targets for the coming year and for the years to follow.

Basic environmental policies, annual plans, mid-to-long term plans and targets for the Group as a whole and for each Group company

NTT Group Corporate Principles

NTT Group Global Environment Charter




4. PDCA for Promotion of Environmental Protection

In order to establish Group-wide management systems and to identify tangible results of our activities, the NTT Group has implemented a PDCA(Plan-Do-Check-Action) cycle for environmental protection activities.

Basic Policies Shared by NTT Group Companies

● Environmental Management 16● Guidelines for Procurement, Design and R&D 19

17

Basic Policies Shared by NTT Group Companies 2


16

�

Level 3: Most sophisticated environmental audits (including LCA and environmental accounting)

Level 2: Environmental management system audits (in compliance with ISO 14001 guidelines)

Level 1: Initial environmental audits (including performance audits to ensure compliance with laws and regulations)Le

vels

of e

nviro

nmen

tal a

udits

Fig. 2.1-2 Levels of environmental audits

04

(4) (5)(7)

(11)

(22)

(26)

1 2 4 4115

10

15

20

25

30

35

40

thru Dec.(year)

(month) 1998 1999

1～319994～6

19997～9

199910～12

20001～3

Num

ber

of c

ertif

icat

ions

Fig. 2.1-1 ISO14001 certifications within the NTTGroup (as of March, 2000)Figures in brackets are cumulative totals.

Material Procurement Department (former)

Procurement and Supply

Access Service System Laboratories

Komatsu Branch

Multimedia Division

Procurement and Supply

Yamanashi Branch

Ibaraki Office

Materials Procurement Center

Procurement And Supply Center

Nagoya Branch

Product and Supply Department

Materials Development & Analysis Division

Toda Products Center

Kanagawa Branch

NTT DoCoMo

NTT (the holding company)

NTT West

NTT Learning Systems

NTT DoCoMo Tokai

NTT DoCoMo Hokkaido

NTT DoCoMo Kansai

NTT DATA Corporation

HALO DEN • IN

NTT DoCoMo

NTT Electronics

NTT East

NTT West

NTT West

NTT Communications

NTT West


NTT DoCoMo Kyushu

NTT Advanced Technology Corporation

DoCoMo Engineering Kyushu

DoCoMo Service

NTT-ME Hokuriku

NTT HOKKAIDO ESPACE

NTT East

NTT Logisco

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

1997.11.20

1998.11.27

1998.12.21

1998.12.24

1999.1.26

1999.6.16

1999.6.30

1999.7.28

1999.7.28

1999.8.30

1999.9.29

1999.10.7

1999.10.20

1999.10.28

1999.10.28

1999.10.28

1999.10.28

1999.11.12

1999.12.22

1999.12.27

1999.12.28

1999.12.28

2000.1.27

2000.2.10

2000.2.10

2000.3.29

JSAE026

JSAE078

JSAE080

EC98J1113

EC98J1136

JMAQA-E053

EC99J1022

EC99J1042

EC99J1048

NQE-9809007A

JSAE150

JUSE-EG-029

EMS99002

JSAE157

JSAE163

JSAE160

JSAE164

JQA-EM0587

JSAE178

EC99J1134

EC99J1152

EC99J1160

JMAQA-E087

EC99J1180

JQA-EM0712

EC99J1239

Headquarters and Branches (Tokai, West Japan, Chugoku, Kyushu)

Procurement Department East Japan Network Facilities Center Network Business Division

Science & Core Technology Laboratory Group, Atsugi R&D Center

Registered entity Registered department Registration dateRegistration number

Headquarters and Kansai Office

Nippon Telegraph and Telephone Corporation

Hokuriku Engineering And Technology Support Center

Table 2.1-1 ISO 14001-certified organizations within the NTT Group

Environmental management

Categories Items

Organization for promoting environmental protection

Office paper management measures

Measures for compliance with revised energy conservation laws, implementation of daily energy conservation activities, power-receiving systems, telecommunication power sources, air conditioning facilities, lighting facilities, gas, oil, boilers, small boilers, oil tanks, low pollution vehicles


Measures for prevention of global warming

Waste management

Office waste, obsolete communication facilities, medical wastes, PCBs (stored and currently used), others (bridge asbestos, construction asbestos, etc.)

Protection of ozone layer Turbo freezers, halon fire extinguishers

General issues Water, septic tanks, office supply procurement

Fig. 2.1-3 Example of an environmental check sheet

NTT Group Environmental Protection Activity Report 2000 NTT Group Environmental Protection Activity Report 2000

1. Environmental Management1. Environmental Management

Establishment ofEnvironmentalManagement Systems

The NTT Group is actively promoting theestablishment of ISO 14001-compliantenvironmental management systems basedon the NTT Group Global EnvironmentCharter.

Each Group company and departmentmust establish and implement its own volun-tary environmental management systems topromote efforts to reduce environmentalimpact in keeping with operational condi-tions, even if they do not obtain official ISO14001 certification.

To effectively and efficiently promotethese voluntary initiatives, the NTT Groupprovides environmental consultation to sup-port the establishment and implementation ofenvironmental management systems.

Examples of ISO 14001Certification

The former NTT Material ProcurementDepartment was first to obtain ISO 14001certification in November 1997, with 26organizations certified as of March 2000.(Fig. 2.1-1)

Entities which have acquired certificationinclude three for NTT (the holdingcompany), two for NTT East, four for NTTWest, and eight for NTT DoCoMo.

Environmental Auditsand Self-Monitoring

To fulfill the expectations of society and ourresponsibilities as a corporate entity, theNTT Group has identified the establishmentand maintenance of environmental manage-ment systems as one of the basic policies ofthe NTT Group Global Environment Charter.Internal environmental audits are essential toensure that these environmental managementsystems are properly implemented. As shownin Fig. 2.1-2, the NTT Group implementsenvironmental audits on three levels.

Level 1 comprises initial audits, includingperformance audits to ensure compliancewith laws and regulations. The NTT Groupendeavors to comply with all laws and regu-lations, local ordinances and agreed reference values relating to environmentalprotection. Regular reports of performanceaudit results are made to local authorities.

Level 2 comprises environmental manage-ment system audits based on ISO 14001guidelines.

Level 3 comprises more sophisticatedenvironmental audits reflecting LCA1 andenvironmental accounting practices.

1 LCALife Cycle Assessment. A method for comprehensiveassessment of the cumulative environmental impactof a product at every stage, from procurement ofmaterials and production through usage and dispos-al. A method called LCC (life cycle cost) can beimplemented for cost analysis.

■ Self-monitoringSince 1995, all NTT Group business officeshave conducted self-monitoring at least oncea year in order to ensure that all applicablelaws and regulations, ordinances, agreed ref-erence values, internal rules and standardsare observed. On-site inspections, documentinspections and interviews are carried outaccording to environmental check sheets, andresults are reported to the departments incharge of environmental activities. An exam-ple of an environmental check sheet is shownin Fig. 2.1-3.

■ Environmental auditsDepartments in charge of environmentalactivities audit each business office every

■ Compliance with laws andregulations

Atmospheric managementIn compliance with the Air Pollution ControlLaw, boilers with heating surface area ofover 10 square meters have been installed atNTT Group companies. A total of 138 busi-ness offices have been equipped with suchboilers. No business office is in violation ofany applicable laws or regulations.

Wastewater managementSubstances regulated under the WaterPollution Control Law include copper, zincand mercury, which are used in NTT labora-tories. No business office has everdischarged wastewater exceeding levels setby laws, regulations and ordinances.

Waste managementIndustrial waste generated by the NTT Groupconsists primarily of dismantled communica-tions facilities such as telephone poles andswitchboards, and concrete and asphalt usedfor construction and civil engineering pro-jects. In 1997, a manifest system2 for propermanagement of industrial waste products wasintroduced. For special industrial waste, suchas asbestos used in buildings and bridges andinfectious waste generated from medicalfacilities, specific individuals are designatedto ensure proper management of waste dis-posal in keeping with the manifest system.

2 Manifest systemA system that enables tracking and management ofthe flow of industrial wastes consigned to third par-ties for treatment and disposal. As of December 1,1998, the manifest system has been applied to allindustrial wastes.

three to four years to ensure that all items onthe check sheets are properly observed inkeeping with the results of self-monitoring.

NTT Group Environmental Protection Activity Report 2000


�

�

Step 1: [Indication of direction]

Establishment of Green Procurement Guidelines

(from July 1997)

Step 2: [Supplier assessment]

Select items from the guidelines which can be realized and begin

assessment

(from October 1999)

Step 3: [Full-scale

implementation]

Comprehensive assessment based on LCA

(cost + environmental impact)

(from 2005)

Fig. 2.2-2 Steps for implementation of Green Procurement Guidelines

�

�

Step 1: [Trial implementation]

Establishment of Green R&D Guidelines

(from March 2000)

Drawing up

detailed

guidelines

for establishing

operational rules

Step 2 [Actual implementation]

Evaluate energy conservation and use of harmful substances, areas with significant environmental impact

(from April 2000)

Establishment

of detailed

guidelines

Step 3: [Full-scale

implementation]

Evaluate all items including materials, energy saving, recycling, etc.

(from 2004)

Fig. 2.2-3 Steps for implementation of Green R&D Guidelines

● R&D management reflecting environmental concerns● Development of products with reduced environmental impact

Products: Green Procurement

Guidelines

Business development

Developed products: Green R&D Guidelines

Buildings: Green Building Design

Guidelines

Reduction of environmental impact

of equipment and facilities

Product procurement policies

Future policies

Fig. 2.2-1 NTT Group environmental guidelines

�

�

Step 1:[Announcement of

basic policies]

Establishment of Green Building Design Guidelines

(from November 1997)

Step 2:[Group development]

Revised to make guidelines applicable to entire NTT Group

(from October 2000)

Step 3: [Full-scale

implementation]

Implement environmental measures as a responsible corporate citizen

(from 2005)

Fig. 2.2-4 Steps for implementation of Green Building Design Guidelines


18 19NTT Group Environmental Protection Activity Report 2000

Fig. 2.1-4 Overview of environmental accounting

Global environmental protection

Network business/information sharing services

Energy

Resources

Global eco-systems

Procurement /construction

Maintenance/operation Disposal

Individual measures

CO2 reduction/ozone layer protection

(refer to pages 26, 33)

TPR initiative (refer to page 26)

Recycling/reuse (refer to page 30)

Environmental accounting (management indices)

1. Environmental Management

Environmental RiskManagement

NTT Group environmental protection effortsare primarily focused on reduction of exist-ing environmental impact and elimination offactors which cause ongoing negativeimpact. In the process, however, of pursuingour business activities, we sometimes haveno choice but to utilize facilities and materi-als which could have harmful effects on theenvironment. Under these circumstances, wemust make special efforts to minimize risks.Environmental risk management is one of theareas the NTT Group has targeted for specialemphasis. Thanks to these efforts, no penal-ties or fines regarding the environment wereimposed on the Group or any of its membercompanies in 1999.

■ Prevention of soil contamination

The NTT Group has underground tankswhich store fuel for auxiliary generation atsome 1,500 switchboard facilities and otherstrategic installations across the country.These facilities are so-called lifelines, indis-pensable for securing communication inemergencies. Leaked fuels from these under-ground tanks could, however, contaminatesoil and water, seriously affecting the qualityof life of local residents.

The NTT Group has made a thoroughstudy of the potential environmental impactof these storage facilities. As the first preven-tive measure against leakage of fuel and otherhazardous substances, we have introducedand reinforced an automatic oil leakage detec-tion system for underground tanks. Thissystem allows for monitoring of fuel levelsand flow rates in existing underground tanks,and constant remote surveillance and report-ing of leakage in surrounding areas to detectand prevent leakage in advance.

We are also implementing installation ofnew underground tanks with a double wallstructure. From January 1999 to March 2000,new tanks were installed at a total of 110 NTT East locations and 140 NTT West locations.

■ PCB storage and harmlessprocessing technologies

Until 1972, PCB (polychlorinated biphenyl)was widely used at NTT for transformers,condensers, and stabilizers for fluorescentlamps. Following the legislative ban on PCBproduction and restriction of its usage, NTTceased new application of PCBs. Even beforethe ban, the company had initiated a storageprogram for used PCBs.

In April 1998, NTT established new inter-nal guidelines for PCB storage, stipulatingthe proper facilities and methods for safestorage of this potentially hazardous sub-stance.

Due to possible deterioration of facilitiesin the 28 years since storage began and theconsiderable time required for completedecomposition of PCB waste, we haverecently implemented additional risk man-agement measures for PCB storage. Smallobjects containing PCB are stored in contain-ers, while large objects, such as transformers,are stored in facilities protected by stainlesssteel trays.

The NTT Group as a whole is aware of the group’s responsibility as a PCB-holder to further implement risk management measures.

Introduction ofEnvironmental Accounting

The NTT Group began the introduction ofenvironmental accounting from fiscal 1999

as part of our efforts to quantitatively graspthe scope and nature of our own environmen-tal initiatives (internal management) and topositively disclose measures adopted toreduce environmental impact and other envi-ronmental efforts initiated as a leadinginformation sharing business (external disclosure). Environmental accounting pro-vides an effective means for quantitativeanalysis of information sharing services and business management from the view-point of energy, resources and globaleco-systems, essential elements of globalenvironmental protection. It also permitsthese results to be reflected in managementdecision-making. (Fig. 2.1-4) The NTTGroup is currently making the followingefforts in environmental accounting: (1) cal-culating environmental costs and their effectsas risk management of environmental coststo NTT Group companies and (2) conductingongoing studies of the social value of infor-mation sharing services and their effect on the future welfare of the environment.

NTT Facilities initiated trial calculationsof environmental preservation costs at theirheadquarters in 1998. NTT (the holding company), NTT East, NTT West, and NTTDoCoMo Hokkaido are making calculationsbased on environmental accounting for 1999.The NTT Group plans to disclose environ-mental accounting results for majorcompanies for the fiscal year 2000. We alsointend to promote an ongoing environmentalagenda by drawing up specific environ-mental accounting guidelines within the NTT Group.

2. Guidelines for Procurement, Design and R&D

The Guidelines

■ Characteristic #1Because the NTT Group has no manufactur-ing divisions, it is necessary to purchaseproducts from suppliers. Environmentalimpact associated with procured products canhave a direct influence on the environmentalviability of our business activities. We havetherefore targeted procurement of environ-mentally friendly products (GreenProcurement) and outlined the concept in ourGreen Procurement Guidelines, which arebeing actively implemented by our procure-ment divisions.

■ Characteristic #2The NTT Group maintains its own R&Ddivisions, engaged in research and develop-ment of services, systems and productsrelated to the businesses of the Group. Whennewly developed products are consigned tomanufacturers for production, we requiredesigns which maximize environmental con-siderations. Our Green R&D Guidelineswere established to clarify such requirementsand promote environmentally friendlyresearch and development.

■ Characteristic #3The NTT Group is engaged in businesses ona nationwide scale, and owns a huge numberof buildings. By incorporating environmen-tally friendly building design from the initialstage, it is possible to achieve a considerablereduction in environmental impact at lateroperational stages. From this viewpoint, we have established our Green Building

■ How the Guidelines areimplemented

We have established steps to ensure system-atic development and implementation ofthese environmental guidelines.

Green Procurement Guidelines are to beimplemented in three steps: Step 1:Indication of direction; Step 2: Supplier

assessment; Step 3: Full-scale implementa-tion. (Fig. 2.2-2)

Green R&D Guidelines are implementedby: Step 1: Trial implementation; Step 2:Actual implementation; Step 3: Full-scaleimplementation. (Fig. 2.2-3)

Green Building Design Guidelines areimplemented in three steps: Step 1:Announcement of basic policies; Step 2:Group development; Step 3: Actual imple-mentation. (Fig. 2.2-4)

Design Guidelines for application to NTTGroup buildings.

The NTT Group has established the follow-ing guidelines to promote the development ofenvironmentally aware business activities.(Fig. 2. 1-1)q Green Procurement Guidelines

(established in 1997) w Green R&D Guidelines

(established in 2000) e Green Building Design Guidelines

(established in 1997)These three sets of guidelines reflect threeunique characteristics of the NTT Group.


Determine relevance vis-a-vis reduced energy consumption

Fact-finding Set targets Self-

assessmentDeliber-ations

Imple-mentation

Report of results, etc.

Energy assessment

Enhanced awareness Concrete measures

Fig. 2.2-9 Basic flow of R&D for reduced energy consumption

Green R&D Guidelines

Det

aile

d gu

idel

ines

Energy R&D Guidelines

Detailed guidelines for harmful substances

Detailed guidelines for indication of material names

Detailed guidelines for saving resources

Detailed guidelines for...

Fig. 2.2-8 Structure of Green R&D Guidelines

20

July,1997

January,1998

March,1998

October,1998

August,1999

Green Procurement Guidelines(for telecommunication facilities)

Green Procurement Guidelines/ Supplements revised

Supplement NGL97-1◆ Indication (plastic materials)

Supplement NGL97-3◆ Materials (Minimizing use of harmful substances)

Supplement NGL 97-4◆ Energy conservation

Supplement NGL97-2◆ Materials (standardization and selection of plastic materials)

General guidelines for products based on environmental considerations

Clear indication of specific plastic materials

Recommended plastic materials and materials to be avoided

Harmful substances are classified into three levels of control

Measures energy conservation perform-ance, a particular concern for NTT

Application to be extended to all Group companies

Fig. 2.2-5 History of revision of Green ProcurementGuidelines

Corporate policy assessment

Product assessment

Assessment of suppliers’ efforts in environmental protection to be reflected in procurement

New procurements

Existing procurements

Assessment of proposals at the time of new procurements to be reflected in the choice of suppliers

Revised specifications

Assessment of individual products when specifications are revised.

VA proposalsVA proposals from suppliers to be individually assessed and reflected in product assessment.

Fig. 2.2-7 Overview of Green Procurement Step 2

Minimum start with reasonable items selected from guideline

categories

Green Procurement Step 2

Requirements in the guidelines●Efforts by suppliers● Implementation of product assessment

Corporate policy assessment

Selection of corporate policy assessment items in keeping with the guidelines and environmental management systems.

Product assessment

Divide NTT procured products by raw materials, parts, etc., and select items for assessment from the guidelines as of October, 1998.

Fig. 2.2-6 Implementation of Green Procurement Step 2

NTT Group Environmental Protection Activity Report 2000 21

Green ProcurementGuidelines

Green Procurement Guidelines were estab-lished in 1997 and revised as shown in Fig.2.2-5. Step 1 of the implementation processis already completed and procurement stan-dards have been reinforced. The guidelinesadopted as standards today were revised inAugust 1998 and are applicable to NTT (theholding company), NTT East, NTT West,NTT Communications, NTT DoCoMo, NTTDATA and NTT Facilities, companiesengaged in activities which generate greaterenvironmental loads compared to other com-panies in the Group. The full text of theguidelines can be viewed on our website andis available for downloading.


http://ontime.ntt.co.jp/07/index07.htmlhttp://ontime.ntt.co.jp/english/kanren/index.html

We are currently working on Step 2 of theimplementation process. Supplier assessmentwas initiated in October 1999, a minimumstart based on reasonable items selected fromthe guideline categories. The NTT Group asa whole procures approximately 100,000specific items, and we have asked approxi-mately 250 suppliers who provide basicitems to cooperate in the initial supplierassessment phase.

Supplier assessments are based on “corpo-rate policy” and “product assessment”. (Fig.2.2-6)

Corporate policy assessment is applicableto all suppliers. Regarding product assess-ment, different products require differentapproaches. We have therefore identified twoimportant areas for assessment: clear indica-tion of specific plastic materials contained inthe product and energy conservation. We willalso require reports on the amounts of harm-ful substances contained in products as databecomes available. Other items in the guide-lines will be individually checked todetermine if they are applicable, dependingon the characteristics of each product.

An overview of corporate policy and product assessments is shown in Fig. 2.2-7.For product assessment in particular, wehave developed different time lines forassessment of new procurement contractsversus existing ones.

As of February 2000, we have conductedcorporate policy assessments of 40 compa-nies. Product assessment was conducted onapproximately 10 new procurement products,while assessments of spec sheets1 for approx-imately 20 existing products were conductedwhen their specifications were revised. We have also received approximately 20cases for assessment to coincide with VAproposals2.

We plan to move on to Step 3 (comprehen-sive assessment based on LCA) to coincidewith the disclosure of data on environmentaleffects of materials and parts.

1 Spec sheet: Specifies technical requirements andconditions necessary for purchasing telecommuni-cation facilities and materials/components.

2 VA proposals: Proposals for improvements fromsuppliers including price reductions, improved func-tions, etc., for materials/components and articleswhich we purchase on a continuous basis.


In March 2000, the NTT Group adoptedGreen R&D Guidelines for research & devel-opment of new services, systems andproducts as a step toward reducing environ-mental loads as stipulated in the NTT GroupGlobal Environment Charter.

These guidelines are our response to theemergence of a “recycling-based society.”The guidelines are based on the principle ofreducing environmental impact by savingresources, minimizing energy consumptionand controlling harmful substances throughefficient utilization of products throughouttheir entire life cycle and through promotionof recycling. The Basic Law for PromotingEstablishment of a Recycle-based Societywhich came into effect in June 2000 requiresbusinesses to reduce environmental loads by(1) reducing, recycling and properly treatingwastes generated through business activities;(2) improving product durability; and (3)improving designs and indicating materialsand components. Our Green R&DGuidelines meet all these requirements.

The Green R&D Guidelines are to beimplemented in three steps as outlined on theprevious page. Energy R&D guidelines,detailed guidelines for harmful substances,detailed guidelines for indication of materialnames and detailed guidelines for savingresources will be drawn up successively,with the process scheduled for completion by 2004.


In developing our Green R&D Guidelines,we identified the following categories for consideration.

● Assessment categories for R&D results:Restriction of materials to be used; saving resources; ease of dismantling;indication of materials for separation;energy conservation; ease of waste dis-posal; restriction of manufacturingprocesses; and methods of recycling and disposal.

● Assessment categories for R&D activi-ties and methods: Control of use ofharmful substances; saving resources;energy conservation; recycling and disposal methods; and green purchasing.

In assessing R&D results, we do notdirectly regulate specifications for individualmaterials/components. Rather, by followingthese guidelines from the initial stages ofR&D, we aim to develop products whichreflect strategic environmental concerns,including reducing wastes and promotingrecycling.

In assessing R&D activities and methods,we aim for reduction of environmentalimpact by limiting the amount of harmfulsubstances and chemicals and reducing theamount of energy used in various facilities.

■ Energy R&D GuidelinesEnergy R&D Guidelines, the first of a seriesof detailed guidelines, were established inMarch 2000.

The NTT Group has made significantprogress with energy conservation effortsthrough on-site measures such as quality

control and improvement of our overall busi-ness activities including construction andmaintenance of facilities. In order, however,to counter expected increases in energy consumption, it is essential to reduce theamount of energy consumed by newly devel-oped communication facilities. Adoption ofenergy-saving measures from the initialstages of R&D is a vital portion of our envi-ronmental agenda.

Our Energy R&D Guidelines have beenestablished in view of such needs, with theaim of promoting reduced energy consump-tion and lessening the environmental impactof R&D throughout the NTT Group.

The guidelines require individuals in chargeof R&D to implement energy assessments atrespective planning and decision-makingstages. These energy assessments aim at pro-moting enhanced awareness, and consist ofthree stages: fact-finding; setting targets; andself-assessments. These stages are necessaryto determine the validity and performance ofenergy assessment targets.

We have also explained concrete examplesof energy assessment methods to make it easier for individuals in charge of R&D tofollow the guidelines.

22

Fig. 2.2-10 Green Building Design Guidelines


(7) Consideration forlocal environment

(1) Extending building life

(2) Restricting use ofhalon and CFCs

(3) Restricting use andremoval of hazardoussubstances

(6) Promoting recycling

(5) Reduction of waste

(4) Conservation ofresources and energy

Green Building DesignGuidelines

The NTT Group owns approximately 30,000buildings throughout Japan. Significantamounts of energy are consumed and wastegenerated in the process of construction,demolition, refurbishment and repair.

In November, 1997, NTT establishedGreen Building Design Guidelines whichoutline our concepts for environmentallysound building design and summarize itemsto be considered in developing those con-cepts in more concrete terms. Theseguidelines reflect basic considerations for thedesign and planning stages of constructionprojects, with the objective of reducing theimpact on the global environment throughoutthe entire life cycle of the building.

The Green Building Design Guidelinesdefine the following seven strategic conceptsfor NTT building design. (Fig. 2.2-10)(1) Extending building life:

Emphasizing flexibility, maintainability,renewal and durability

(2) Restricting use of halon and CFCs: Banning the use of equipment containinghalon or specified CFCs, removal ofmaterials containing CFCs


http://www.wnn.or.jp/wnn-eco/gpne/index.html


(3) Restricting use and removal of harmfulsubstances: Restricting the use, removal and disposalof harmful substances

(4) Conservation of resources and energyConserving resources and energy duringconstruction, conserving energy duringuse of facilities, effective use of naturalenergy sources, improving efficiency ofenergy utilization

(5) Reduction of waste: Reduction of excess materials, reductionof generated waste

(6) Promoting reuse and recycling: Promotes use of reused and recycledmaterials, reuse and recycling of by-products,

(7) Consideration for local environment: Understanding environmental character-istics, reducing loads on localenvironment

Green Purchasing

In line with our policy to prioritize environ-mentally friendly materials and components,the NTT Group makes an effort to take envi-ronmental impact into consideration whenpurchasing office supplies such as copypaper, stationery and office equipment.

Within the NTT Group, each Group com-pany and office has established its ownpolicies to actively promote green purchas-ing. NTT (the holding company), NTT East,NTT West, NTT Communications, NTTDoCoMo, and NTT DATA participate in theGreen Purchase Network (GPN) 1, adoptingGPN product guidelines to promote procurement of environmentally friendlyoffice supplies.

Organizations within the NTT Groupwhich are aiming for ISO 14001 certificationare also actively involved in green purchas-ing as a part of their efforts to obtaincertification.

1Green Purchase Network (GPN)A nationwide network of consumers, businesses,and government agencies who voluntarily promotepriority purchasing of environmentally friendly prod-ucts and services. Established in February, 1996.

Specific Global Environmental Issues and Our Response

● Paper Resource Management 24● Preventing Global Warming 26● Waste Management and Proper Disposal 29● Promoting Recycling 30● Protecting the Ozone Layer 33● Minimizing Environmental Risks 34

25NTT Group Environmental Protection Activity Report 2000NTT Group Environmental Protection Activity Report 200024

Specific Global Environmental Issues and Our Response3


0

20

40

60

80

100

120

140

160

19951994 1996 1997 1998 1999

(Unit: 1,000t)

0

10

20

30

40

50

60

70

80

90

100

1994 1995 1996 1997 1998 19990

10

20

30

40

50

60

70

80

90

100 (Unit: 1,000t) (%)Virgin pulp

Recycled paper

Con

sum

ptio

n of

virg

in p

ulp

Rat

io o

f rec

ycle

d pa

per

Fig. 3.1-6 “Angel Line” home page, NTT West Japan

http://www.ntt-west.co.jp/angel

Fig. 3.1-5 “ ” Town Page home page

http://english.itp.ne.jp/

0

20

10

30

40

50

60

70

1994 1995 1996 1997 1998 1999

(Unit: 1,000t)

Old telephone directories

New telephone directories

Printed and bound by printing company

Treated for use as recycled material component of new telephone directories

Old telephone directories collected and sent to paper manufacturing company

Fig. 3.1-7 Closed loop recycling of telephone directories

1. Paper Resource Management1. Paper Resource Management

Fig. 3.1-1 Paper consumed in production oftelephone directories

Photo 3.1-1 Telephone directories Photo 3.1-2 Telephone directory in CD-ROM format

Fig. 3.1-2 Virgin pulp and recycled paper inproduction of telephone directories

Fig. 3.1-4 Collection of used telephone directories

Protection of forests is an agenda ofspecial priority where environmentalissues—including biosphere preserva-tion, prevention of global warming, andcontrol of air pollution causing acidrain—are concerned. NTT Group ismaking a significant effort to minimizeconsumption of paper resources, mak-ing an effective contribution toprotecting our valuable forests.

Fig. 3.1-3This logo mark identifiesour Eco-ChallengeTelephone Directory

Use of Recycled Paper for Telephone Directories

■ Reduction of virgin pulp consumption

NTT Group issues some 120 million tele-phone directories a year, consumingapproximately 140,000 tons of paper. (Fig.3.1-1 and Photo 3.1-1)

Although this extensive circulation indi-cates the need for telephone directories, theresulting massive consumption of paperunderlines the importance of our mission todevelop and implement sustainable opera-tions with the protection of forests in mind.Reduction of virgin pulp consumption in par-ticular is of primary concern. To achievethese goals, NTT Group is making a concen-trated effort to minimize paper consumptionby reducing the total number of telephonedirectories in circulation as well as promot-ing the use of recycled paper.

To optimize the circulation of telephonedirectories, the NTT Group is working toinquire and estimate how many customerswill need their directories to be renewed.Publication of telephone directories in CD-ROM format is also being pursued. (Photo3.1-2: Trial publication of CD-ROM corpo-rate telephone directory for the 23 wards of Tokyo.)

The use of recycled paper is being imple-mented through various measures, resulting

in the publication of our Eco-ChallengeTelephone Directory1, featuring a higherratio of recycled paper.

Through these efforts, consumption of vir-gin pulp in fiscal 1999 was successfullyreduced to 73,000 tons, far below our initialtarget. (Fig. 3.1-2)

1Eco-Challenge Telephone Directory:The “Eco” prefix symbolizes our dedication to envi-ronmental protection.

■ Saving paper via the InternetIn addition to providing customers with tra-ditional printed telephone directories, theNTT Group also provides a variety of ser-vices utilizing electronic media.

Services include our “ ” Town Page, anInternet version of Town Page, and AngelLine, an on-line service for Hello Page.These services were developed to expeditetelephone number searches as well as toreduce the amount of paper consumed. (Fig. 3.1-5)

Angel Line is a service in which customerswith PCs equipped with communicationsfunctions can directly access NTT’sTelephone Number Information Center,enabling them to look up the telephone num-bers they need for themselves. (Fig. 3.1-6)

■ Recycling old telephone directories

The NTT Group collects old telephone direc-tories (Fig. 3.1-4) and recycles them asmaterials for products such as cardboardboxes, internal company publications,invoices and envelopes.

In February 2000, we replaced yellow paperwith yellow ink on white paper to facilitate therecycling of our Town Page directories. Thisis an important step in our plan to introduceclosed loop recycling1 for telephone directo-ries by the year 2001. (Fig. 3.1-7)

This closed loop recycling system aims toutilize old telephone directories, rather thanold newspaper, as the recycled paper compo-nent in the production of telephonedirectories. The success of this innovativerecycling system depends on the efficientcollection of old telephone directories.

With this goal in mind, the NTT Group isstriving to collect as many old telephone

directories as possible. For customers who arenot at home at the time of collection, a toll-free phone number is printed on the back ofthe directory, enabling them to contact us forfree-of-charge collection at their convenience.

We will continue our focus on collectionof used telephone directories and implemen-tation of closed loop recycling as part of ourongoing efforts to maximize paper resources.

1Closed loop recycling:A recycling system in which a certain product is recy-cled in the production of its replacement in an effortto minimize the waste of natural resources.

■ Green procurementThe closed loop recycling system, in whichnew telephone directories are produced usingold ones, is a sign of the demands of ourtimes. In order to implement such programswithout adversely affecting humans and thesurrounding environment, it is essential tochoose materials which do not contain harm-ful chemical substances when procuring rawmaterials.

The NTT Group recognizes our responsi-bility to provide customers with telephonedirectories they can use with confidence, andconstantly aims to practice green procure-ment, with harm-free materials a top priority.

“Angel Line” home page, NTT East Japan

http://www.ntt-east.co.jp/angel

Opened in November 1999, the NTTMusashino R&D Center was designed toconserve energy and reduce environmentalimpact in line with our Green BuildingDesign Guidelines. After thoroughly analyz-ing specific requirements and conditions foroperation as a R&D center for the NTTGroup, the building incorporates a number ofthe latest technologies.

■ Design plan● The building is positioned laterally, east

to west, reducing the surface area tominimize heat load from the sun.

● In view of year-round energy consump-tion from cooling facilities, researchrooms with energy-consuming comput-ers and servers are located on the northside of the building.

■ Structural components and functions

Double-glazingDouble-glazing, adopted for the windows inthe community corner on the south side ofthe building, is an energy-conservation sys-tem that effectively utilizes natural energy.While maximizing the transparency and lightpenetration of glass, this system serves toalleviate strong sunlight in the summer, insu-late in winter, and provide natural ventilationin other seasons. (Fig. 3.2-3).

Solar power louvers: 36 kW Louvers to transform solar light into cleanelectric energy are installed on the south sideof the building. Serving the dual function ofbuilding materials as well as power genera-

27NTT Group Environmental Protection Activity Report 200026 NTT Group Environmental Protection Activity Report 2000


With the steady progress of globalwarming, it is feared that rising sea lev-els could affect the biosphere in thenot-so-distant future. As part of ourwide-ranging efforts to prevent globalwarming, the NTT Group is involved inprojects to reduce emissions of green-house gases, such as carbon dioxide,generated by our business activities.

Fig. 3.2-2 CO2 emissions produced in connection with NTT Group electricity consumption and power generation

Fig. 3.2-1 Vision for the reduction of electricity requirements toward 2010

100

80

60

40

20

0

Step 1

1998~2005 2005~2010

Trend before implementation of reduction measures Measures to

reduce energy consumption

Power generation

Reduction target (1990 level)

Step 2

◆ Step 1: To develop energy-efficient components and parts, such as LSIs◆ Step 2: To efficiently introduce communications equipment that incorporates achievements from Step 1.◆ To improve the self-sufficiency ratio of electricity from 4% (estimated) in 2000 to 30% in 2010.

1990 1999 2005 2010 (fiscal year)

(unit: 100 million kWh)

2,400

2,200

2,000

1,800

1,600

0

*CO2 emissions include amounts derived from self-power generation

17.7%

10.8%4.5%

5.3%

Extrapolated from trends ▲6.9%

1996 1997 1998 1999 (fiscal year)

CO

2 em

issi

ons

(unit: 1,000t-CO2)

approximately 130,000 tons of CO2. (Fig.3.2-2)

With our TPR initiative as the base, theNTT Group will continue to provide solu-tions to energy issues in the communicationsfield through active involvement in energy-related R&D. At the same time, we aim toreduce energy costs in addition to working tosuppress CO2 emissions—the primary cause

of global warming—thus contributing tobuilding the infrastructure for the informa-tion sharing society and preserving the globalenvironment.

Single crystalsilicon solar cell

Prevention of wind noise

Aluminum extrusion

10˚

Inner space with vents

Fig. 3.2-4 Structure of photovoltaic powergenerating louver

Photo 3.2-1 NTT Musashino R&D Center


2. Preventing Global Warming

Fig. 3.2-3 Functions and effects of double-glazing

Small opening

Temperature rise

Heating

External air-conditioner

Community corner

Closed

Example: In the winter mode, vents at the bottom ofthe double-glazing are opened, transforming theinternal space into a heat collector that deliverswarm air to the air-conditioner. Insulation effect alsoreduces heat load.


The NTT Group TPRInitiative

The amount of electricity consumed by theNTT Group is expected to increase due to theproliferation of the Internet, mobile phones,and other advances as society becomesincreasingly reliant on information sharingtechnology.

Beginning in October 1987, the NTTGroup has made continuous efforts to reduceelectricity consumption. In October 1997, asan extension of these efforts, we launchedour Total Power Revolution (TPR) initiative,detailing our commitments to cope withpower-related issues from the earliest stagesof R&D.

In February 1998, we announced ourVision for the Reduction of ElectricityRequirements toward 2010 to ensure the suc-cess of the TPR initiative and to fulfill ourresponsibility to respond to environmentalissues. (Fig. 3.2-1)

■ Three pillars of the TPR initiativeThe TPR initiative targets three major areas:

● Energy reduction through R&D● Energy reduction at departments using

communications facilities● Energy reduction at departments that

maintain and manage power-generatingequipment

In fiscal 1999, the NTT Group purchasedapproximately 5.4 billion kWh of electricity,which translates into CO2 emissions ofapproximately 2.06 million tons.

CO2 emissions in fiscal 1999 were origi-nally expected to increase by about 18%year-on-year. By virtue, however, of the TPRinitiative, the increase was contained at about11%. This means an effective reduction of

Clean Energy Facilities

■ Introduction of solar and windpower generation systems

In March 1996, the NTT Group introduced a555 kW photovoltaic power generation sys-tem—the largest roof-top installation of itskind in the world—at the present East JapanTraining Center in Chofu City, Tokyo. ByMarch 2000, we had installed 50 photovolta-ic power generation systems (approximately1.3 MW) and 4 wind power generation sys-tems (approximately 0.2 MW) in variousareas of Japan. These facilities supplyapproximately 2 million kWh of electricityannually, which translates into a reduction ofsome 740 tons of CO2 emissions.

■ Introduction of hybrid and stand-alone power systems

In March 1998, we introduced a hybrid sys-tem which combines 230kW wind powergeneration and 20kW photovoltaic powergeneration at the NTT Kume-jima RadioRelay Station in Okinawa. This facility uti-lizes technology to regulate fluctuations involtage and frequency of electricity generat-ed by wind power, and represents a new levelof harmony with natural energy sources.

We have also been introducing stand-alonephotovoltaic power generation systems, thefirst of which went into operation inDecember 1999 at the Chihokutoge WirelessStation of NTT DoCoMo Hokkaido. Indesigning the system, we analyzed historicalmeteorological data and verified reliability ofsupply using simulations, overcoming theinherent instability of natural energyresources and creating a highly reliablepower generation system.

Musashino R&D Center—Built to Conserve Energy

tors, these highly efficient louvers areequipped with vents for temperature control.(Fig. 3.2-4)

■ Building facilitiesCGS (Co-Generation System): 750 kW x 2 unitsThis system generates electricity from cleancity gas. Hot water and steam generated dur-ing power generation are utilized forair-conditioning, heating and hot water sup-ply. At the main building of Musashino R&DCenter, one third of the electricity is provid-ed by co-generation, resulting in a reductionin costs and in CO2 emissions, one of the pri-mary causes of global warming.

Fuel cell system: 200 kWThe building is equipped with a multi-typefuel cell system which operates with eithercity gas or LPG. Total energy efficiency of80% has been achieved with a combinationof newly developed single- and double-layerabsorption refrigeration machines. Theadvantages of this system include cleanemissions, low noise, and minimal vibration.



Fig. 3.3-1 Discharge, recycling and disposal of removed communications facilities

35

30

25

20

15

10

5

01997 1998 1999 (fiscal year)

(10,000 t)

Disposed

Communications cables

Concrete telephone poles

Switchboards, etc.


Switchboards, etc.


Switchboards, etc.

Recycled



Fig. 3.3-2 Intranet system for managing waste processing data

http;//www.

Database on processing of removed communications

facilities

Compilation of processing results

Compilation of processing results

Intranet

Data input

Web browser

Web browser

Office OfficeProcessing company

Subcontracted for processing

Manifest slips

3. Waste Management and Proper Disposalhttp://www.ntt.co.jp/kankyo/e/2000report/3/331.html

Fig. 3.2-5 Schematics of old and new shipping systems

■ : NTT product destinations● , ▲: Home delivery service destinations

Based on the day's shipping volume, destinations and distances, shipping is arranged for all destinations within the zone

More efficient shipping by joint deliveries and optimal vehicle dispatch

Zone delivery (new shipping system)

Distribution center

(old)

Daily delivery to fixed destinations

Route-based delivery (conventional system)

■ : NTT product destinations● , ▲: Home delivery service destinations

Distribution center

51

4

2

3

(new)

Photo 3.2-2 Low-pollution vehicles and “TAKO Zero” anti-idling campaign mark


Minimizing CO2 Emissionsfrom Company Vehicles

As of the end of fiscal 1999 the NTT Groupowned approximately 44,000 vehicles, whichtogether emit approximately 88,000 tons of CO2.

As part of our ongoing efforts to reduceCO2 emissions, we are introducing low-pol-lution vehicles, promoting an anti-idlingcampaign (nicknamed ‘TAKO Zero’—keepthe tachometer at zero) for all company vehi-cles, and seeking to reduce the total numberof vehicles in our fleet.

Based on CO2 emission targets set forth inthe action plan established in 1991, we havebeen working to stabilize vehicle CO2 emis-sions at 1990 levels in and after 2000.Subsequently, we will continue to gather andanalyze data in an attempt to achieve evenfurther reductions in CO2 emissions.

We also plan to introduce a greater numberof low-pollution vehicles in line with costconsiderations and technological develop-ments in the field.

New Shipping Network System

NTT Logisco, the logistics arm of the NTTGroup, does not own any delivery vehicles.In addition to the need to control deliverycosts, increasingly varied consumer needsand requirements for sophisticated logisticservices, including more frequent, small-lotdeliveries, make the reduction of environ-mental impact an important concern. In April2000 we initiated a New Shipping NetworkSystem with the aim of improving truckloading efficiency. Replacing the conven-tional route-based shipping system, the newsystem is based on zones in which all goodsfor delivery within a predetermined area canbe delivered by a joint delivery system. (Fig.3. 2-5)

This New Shipping Network System per-mits the optimal dispatch of vehicles, basedon day-to-day fluctuations in volume anddestinations. The new system contributes tolessening the environmental impact of ourlogistics operations through the combinationof more efficient joint delivery and a reduc-tion in the overall number of trucks.

Effective waste management effortsresult in the reduction of loads at pro-cessing facilities, which in turn leads toreductions in harmful emissions, globalwarming and slower depletion of limit-ed resources. At the NTT Group, wemake active efforts to reduce the vol-ume of waste generated in the courseof our activities and to ensure efficientand proper disposal of the waste products generated.

■ Reducing waste volume andpromoting recycling

The NTT Group currently recycles copperused in cables, reuses concrete telephonepoles for roadbed materials and reclaims dis-carded batteries for reuse.

In procuring communications facilities, weprioritize green procurement by endeavoringto purchase materials and components with ahigh percentage of recyclable materials anditems that generate lower environmentalimpact when disposed as waste.

■ Introduction of electronic manifest system

NTT East introduced an electronic manifestsystem in the Metropolitan area in July 2000.The electronic manifest is managed by theJapan Industrial Waste Technology Center,

as stipulated in Article 12, Section 4 of theLaw concerning Waste Disposal andCleaning and as designated by the Ministerof Health and Welfare. The main advantagesof the electronic manifest system include:

● Paper manifests required storage andmanagement for five years. The elec-tronic manifest is centrally managed atinformation processing centers, stream-lining and increasing the efficiency ofpaperwork.

● Automatic notice is given when collec-tion, transportation or disposal ofindustrial wastes becomes overdue.

● Each year, information processing centers compile reports to local govern-ments containing manifest informationwhich must be submitted by waste-generating enterprises

Disposal of DismantledCommunications Facilities

The NTT Group utilizes a wide range offacilities and equipment, including communi-cations cables and switchboards. In 1999,communications facilities removed forrenewal totaled approximately 250,000 tons.(Fig. 3.3-1) The environmental impact ofsuch a large volume of waste is significant,and we make every effort to actively promotenot only appropriate disposal, but also reduc-tion of waste volume, reuse and recycling.

■ Promoting proper disposal anddeveloping Internet database ofdisposal results

In 1997, manifests were introduced to trackand manage disposal of removed communi-cations facilities. In conjunction with theintroduction of manifests, we also initiated anew system to monitor the progress of eachshipment and accumulate data on disposalresults via our internet networks. This systemenables us to monitor the waste disposalprocess from start to finish, while the data-base has the potential to serve as animportant tool for reducing wastes and pro-moting recycling. (Fig. 3.3-2)

31NTTGroup Environmental Protection Activity Report 200030 NTT Group Environmental Protection Activity Report 2000

Photo 3.4-3 DoCoMo Come Back poster

Items Fiscal 1999Cellular phones and PHS unitsBatteriesChargers and accessories

approx. 5.9 million unitsapprox. 4.9 million unitsapprox. 1.4 million units

Collection of used cellular phones, batteries, etc. by NTT DoCoMo Group

Packing materials (polystyrene)

Packing materials (cardboard)

Fig. 3.4-4 Use of packing materials (example: NTT West)

300

250

200

150

100

50

0(fiscal year)

Vol

ume

1990 1991 1992 1993 1994 1995 1996 1997 1998 1999

(t)

Fig. 3.4-5 Volume of polystyrene used as packing material forcommunications equipment


Approaches to recycling plastics

Removed NTT equipment/components ⇒ Recycled NTT equipment/components

Removed NTT equipment/components ⇒ Marketable recycled equipment/components

Thermal recyclingHeat source, raw materials

for cement production, deoxidization in smelting, etc.

q

w

e

Dis

man

tled

com

mun

icat

ions

faci

litie

s (p

last

ics) Material recycling

(NTT-closed system)

Material recycling (open system)

Fig. 3.4-1 Priority of plastics recycling methods

Photo 3.4-1 Support line guards

Photo 3.4-2 Improved recycle status marking

Fig. 3.4-3 Volume of repellets produced throughmaterial recycling

600

500

400

300

200

100

01995

(t)

1996 1997 1998 1999(fiscal year)


4. Promoting Recycling

Table 3.4-1


Recycling is the primary focus of ourefforts to protect the global environ-ment. At the NTT Group, we considerdevelopment of more effective recyclingsystems one of our most importanttasks, and aim for total recycling ofcommunications facilities, office sup-plies, and even kitchen trash from ourcafeterias.

Promoting Reuse of DismantledTelecommunications Facilities

The NTT Group actively promotes the 3Rsfor removed communications facilities andother industrial waste:

● Reduction (of waste volume)● Reuse ● Recycling

■ Promoting reuse and recyclingInformation on reusable items such as com-munications cables, telephone poles, andpublic telephones is registered on our inter-nal LAN to encourage reuse at appropriatelocations.

We also promote collection and recyclingof copper, iron, and precious metals used incables and other equipment, recycling ofconcrete telephone poles for roadbed materi-al, and reclamation of used batteries.

■ Recycling plastics Plastics present a major dilemma for recy-cling due to problems related to marketdevelopment, grading and separation, andcost effectiveness. At NTT, we are commit-ted to improving the efficiency of plasticrecycling, and are making steady progress, astep at a time.

Fig. 3.4-1 illustrates our approach to plas-tics recycling.

Connection terminal boxes1 (made ofpolypropylene) and support line guards(made of polyethylene) are examples ofmaterial recycling (NTT-closed system). (Fig. 3.4-2)

Support line guards (Photo 3.4-1) former-ly displayed a sticker indicating recyclestatus, but the marking has now been inte-grated into the material during the molding

process (Photo 3.4-2), eliminating the needto remove the stickers and achieving 100%recycling of the material.

These and other plastic recycling effortsgenerated 530 tons of repellets2 in 1999.(Fig. 3.4-3)

Removal and replacement of optical fibercables is expected to increase, and we arecurrently implementing thermal recycling,using them as raw materials for cement production.

1Connection terminal boxes:Housings that cover connections between cablesand also between cables and subscribers ’ service lines.

2Repellets (recycled pellets)Plastic waste transformed into uniform granules for recycling

3Spiral sleevesWrappings that protect cables

4External line claspsFixtures to fasten external l ines leading to subscribers’ homes

■ Promoting recycling throughgreen procurement

We will continue to strengthen our recyclingefforts by implementing our GreenProcurement Guidelines (see page 20), stan-dardizing and clearly indicating the materialsused in our equipment, selecting easy-to-recycle materials, minimizing harmfulsubstances, and purchasing items with easy-to-recycle and easy-to-dismantle designs.

Dismantled equip-ment/components Recycled items

q Connection terminal boxesw Telephone pole indication panelse Spiral sleeves3

r Support line guards

t External line clasps4

Connection terminal boxes

Support line guards

Black bakelitetelephones

Recycling of CellularPhones, PHS Units andBatteries

The NTT DoCoMo Group is also activelyengaged in the collection and recycling ofused products in order to reuse them effec-tively as resources.

Used products collected by DoCoMoshops, such as DoCoMo battery packs, bat-tery chargers, cellular phones, and car phoneunits, are separated at recycling factories tobe incinerated or crushed. Metal content ofbatteries is separated and melted into nickel,cobalt or cadmium ingots. Precious metalssuch as gold and silver from cellular phoneboards are extracted and recycled. Recoverednickel ingot is used for stainless steel whilecobalt is reused for magnets in speakers and motors.

Improvements in ProductPacking and PackagingMaterials

In 1990, approximately 257 tons of poly-styrene was used annually as protectivepacking for communications equipment soldby the NTT Group. While polystyrene hasexcellent characteristics as a packing materi-al, protecting products from shock, moistureand humidity, it has a negative impact on theenvironment as it does not decompose easilyunder natural conditions.

In accordance with increasing awarenessof global environmental issues, we have beengradually switching from polystyrene tocardboard, a renewable resource. We nowuse cardboard for packing new models ofcordless phones and facsimile machines for home use.

For heavier items, such as facsimilemachines for office use, internal switchboardequipment, and other precision instrumentsfor which there is no suitable substitute, weare reducing volume by using thinner layersof polystyrene packing. (Fig. 3.4-4)

In 1996, we achieved our initial target fig-ure of 70 tons of annual consumption(roughly one quarter of 1990 levels). In1999, we reduced the volume to some 29tons, less than half of the 1996 level. (Fig.3.4-5) For cordless phones and fax machinesfor home use we have completed a 100%switch to cardboard packing material.

Fig. 3.4-2 Example of plastic materials recycling


180

160

140

120

100

80

60

40

20

01992

(units)

1993 1994 1995 1996 1997 1998 1999 2000 (planned)(fiscal year)

Number of turbo freezers replaced

Number of turbo freezers remaining

Fig.3.5-1 Turbo freezer replacement schedule


5. Protecting the Ozone Layer

Fig. 3.4-6 Zero Kitchen Garbage recycling system

(units) (t)

0

500

1,000

1,500

2,000

2,500

1997 1998 19990

500

1,000

1,500

2,000

2,500

3,000

3,500

Num

ber

of r

ecyc

ling

boxe

s

Number of recycling boxes

Collected volume

Volu

me

of c

onfid

entia

l doc

umen

ts c

olle

cted

Photo 3.4-4 Recycling box


http://www.ntt-me.co.jp/bio/

Employee canteen

General markets

Shops FarmsOrganically grown agricultural products

Fertilizerfacility

Kitchen garbage

(additional ingredients)

Collect and transportRemove

High-speed kitchen garbage fermentation processor

Org

anic

fer

tiliz

er

Fo

od

stu

ff

MonthlyMonthlyDaily

Separate, drain and dispose

Compost

Recycling

1 2

3

Fig. 3.4-7 Number of recycling boxes andvolume of confidential documentscollected

Website for details of high-speed kitchen garbagefermentation processor:

Photo 3.5-1 Turbo freezer


Zero Kitchen Garbage

The NTT Group has initiated a Zero KitchenGarbage campaign, an effort to recyclekitchen garbage generated at approximately600 employee canteens nationwide.

In April 1999, we introduced garbage fer-mentation equipment to recycle kitchengarbage at canteens mainly in theMetropolitan area. An example of a ZeroKitchen Garbage zero emission1 recyclingloop utilizing high-speed garbage fermenta-tion processors is outlined below. (Fig. 3.4-6)

q Garbage is biologically decomposedusing aerobic bacteria2 with no sawdust,chips, ceramics, etc.

w Compost generated through decomposi-tion is transported to fertilizer facilitiesand mixed with other organic compo-nents, such as oil cake, fish meal andbone powder. This process transformsthe compost into a convenient organic fertilizer.

e This organic fertilizer is used to culti-vate agricultural products such asvegetables, which in turn become food-stuff on our tables.

In this way the recycling loop is completed,achieving our Zero Kitchen Garbage goal.

1 Zero emission: A recycling system which generates no wastes2 Aerobic bacteria: Bacteria which thrive in air with oxygen.

Recycling Box forConfidential Documents

At NTT Logisco, we have developed a recy-cling system for confidential documents toencourage effective management of paperresources and minimize the use of paper shredders.

NTT Group departments in charge of cus-tomer services generate a large amount ofpaper-based customer data, consuming anenormous amount of time, labor and electric-ity as well as generating a huge volume ofwaste. The recycling box offers a solution tothis problem.

Since trial introduction in 1994, we havemade significant improvements to the sys-tem, resulting in full-scale implementation in1997. As of 1999, some 2,000 boxes havebeen installed, collecting approximately3,000 tons of paper per annum.

The ozone layer is an important naturalbarrier that blocks harmful ultravioletrays, protecting all living creatures onEarth. The NTT Group is making all-outefforts to reduce our use of CFCswhich cause deterioration of the ozonelayer, so that people can live withoutfear of harmful UV radiation.

Replacement of TurboFreezers and Maintenance ofInternal CFC Banks

■ Number of turbo freezers removed/remaining

In 1992, the Fourth Conference of the Partiesto the Montreal Protocol set forth a schedulefor elimination of specified CFCs1.Following this, in Nov. 1992, the formerNTT Group Global EnvironmentalProtection Promotion Committee determineda basic policy for the Group to cease installa-tion of new turbo freezers using specifiedCFCs, with a schedule to replace the majori-ty of existing turbo freezers by the year 2000.As of the end of fiscal 1992, 166 turbo freez-ers required replacing. In fiscal 1999, 10freezers were replaced, leaving a total of 8freezers in operation. This replacement ratioof 95% indicates that the program is pro-gressing on schedule. (Fig.3.5-1)

■ Internal CFC banksSince July 1994, the NTT Group has main-tained internal CFC banks for effectivemanagement of specified CFCs.Replacement of turbo freezers is progressingon schedule, and destruction of specifiedCFCs is being contemplated for fiscal 2000.We currently maintain CFC banks at fivelocations, where approximately 46 tons ofspecified CFCs are stored under proper con-trol. After careful consideration of cost, time,and documented results, we have selected theheated steam reaction method2 and combustion method of decomposition as out-lined in CFC Decomposition Guidelinesprepared by the Air Quality PreservationBureau of the Environment Agency. (Photo3.5-1)

1CFCs (Chloro Fluoro Carbons)Chemically stable, nonflammable and non-toxic sub-stances composed of fluorine, carbon and chlorine.With these traits, CFCs are widely used as coolantsin turbo freezers, foaming agents for insulators, andcleaning agents for electronic parts. Due to their chlorine content, CFCs have a high ozone-depleting factor.

2Heated steam reaction methodA method to destroy CFCs by decomposing themwith steam heated to approximately 650°C. AfterCFCs are hydrolyzed, they are neutralized andcooled with calcium hydroxide solution. This methodoffers the advantages of a high decomposition rate(more than 99.99%) and the ability to treat large vol-umes of CFCs.

Website for details of recycling boxes

http://www.ntt-logisco.co.jp/integ/index06.htm



Fig. 3.6-1 EMC-related activities

Advancing communications

technology

Effect EMC technology Effect

Electro-magnetic environment

Artificial & natural noise

Challenges for maintaining an optimum electro-magnetic environment

Wider focus on international standards

Challenges concerning changes in application environment

Internet, energy saving, etc.

Challenges in connection with new types of communications

Home networks, wireless communications, etc.


6. Minimizing Environmental Risks

Photo 3.6-1 Testing equipment

Antenna support Dipolar antenna

Cardiac pacemaker Torso phantom (human body simulator)

As a leader in the field of informationsharing services, the NTT Group has aresponsibility to research, analyze, andactively develop measures to minimizeenvironmental risks.

Effects of Radio Waves upon Humans

The proliferation of radio transmissions, ascharacterized by mobile phones, has led tomounting concerns about the effects of radiowaves upon humans. When considering sucheffects, we need to separate physiologicaleffects from the effect of electromagneticinterference upon electronic medical equip-ment such as pacemakers.

■ Compliance with global directives

Research on how radio waves affect humanhealth is being carried out worldwide. Incooperation with the World HealthOrganization (WHO), the InternationalCommission on Non-Ionized RadiationProtection (ICNIRP) has assessed researchresults and presented basic restriction valuesas safety guidelines for using radio waves.These values are far below those which arepresumed to affect humans. Based upon various countries’ recommendations includingICNIRP guidelines, the Telecommunica-tions Technology Council (an advisoryorganization to the Ministry of Posts andTelecommunications) has submitted reportsoutlining guidelines for protecting humanswhen using radio waves in Japan since 1990.

At NTT DoCoMo, in addition to imple-menting R&D on methods to preciselyestimate the strength of radio waves relatingto this issue, we make it our policy to utilizeradio waves strictly in compliance with theseguidelines. Radio base stations are construct-ed and operated with due consideration ofpossible effects on the surrounding environ-ment. Mobile phones are designed so thatelectromagnetic power absorbed by humanusers is well below the guide values regard-ing SAR (Specific Absorption Rate).

■ Surveys and R&DIn response to requests from medical equip-ment manufacturers and medical institutions,

NTT DoCoMo has made active efforts toensure that our mobile phones do notadversely affect medical equipment such aspacemakers.

With regard to possible interference withother medical equipment, we are conductingsurveys and experiments in cooperation withrelated organizations, and contributing todeveloping new medical equipment, which isable to withstand radio interference. As partof these efforts, we have conducted researchto develop testing equipment (Photo 3.6-1)and measurement methods to accuratelyassess the effect of radio waves, and ana-lyzed the characteristics of all types ofpacemakers available in Japan.

in order to maintain an electro-magneticenvironment conducive to efficient commu-nications. At the same time, it will soonbecome necessary to widen the application ofthe EMC regulations in response to ever-advancing communications technologies.

At NTT (the holding company), staff aredispatched to international and domesticstandardization organizations, contributingactively to drawing up or recommendingstandards. Furthermore, we are promotingR&D to respond to new types of communica-tions, including investigation into themechanism of breakdown occurrence, devel-opment of technology and parts forcommunications systems design, assessmentof electro-magnetic environments, and devel-opment of technology to control and managethe electro-magnetic environment.

1VCCI (Voluntary Control Council for InformationTechnology Equipment):A world organization involved in developing stan-dards to govern interference generated by electronic devices

EMC (Electro-magneticCompatibility)

Telecommunications units can affect theelectro-magnetic environment by emittingelectro-magnetic waves and interference,while they in turn also can be affected bysuch interference. This phenomenon is pre-dicted to become more prevalent astelecommunications technology continues toproliferate. (Fig. 3.6-1) Thus, our focus onelectro-magnetic compatibility (EMC) tech-nology. EMC technology controls noiseemissions from telecommunications units,prevents deterioration of quality due toincoming interference, and improves immunity to malfunctions caused by such interference.

Since joining the VCCI1 in 1989, the NTTGroup has taken various active positions,such as establishment of internal standards,

R&D to PromoteEnvironmental Protection

● Contributing to a Sustainable Society through IT 36● R&D to Promote Reduction of Environmental Impact 39


R&D to Promote Environmental Protection4

Multi-location connector

Kyushu

Osaka

Tokyo

Hokkaido

On-siteconference

Teleconference

Telephone

networks

System equipment

for teleconferencing

CO

2emissionratio

1

0.8

0.6

0.4

0.2

0

Fig. 4.1-2 Teleconference system

Fig. 4.1-3 Reduction of environmental impact by teleconferencing

Web server

Site visitors

Data collection serverwith

automatic content generation

Sensor

Sensor

Sensor

Sensor

Internet

Telephone network

Fig. 4.1-1 Sample system configuration

1. Contributing to a Sustainable Society through IThttp://www.ntt.co.jp/kankyo/e/2000report/4/411.html 1. Contributing to a Sustainable Society through IT

The rapid development of informationtechnology (IT) has fostered radicalchanges in business models and busi-ness styles, making a significantcontribution to reduced environmentalimpact in a variety of fields.Specializing in IT, the NTT Group aimsto maximize the potential of informa-tion technology for the benefit ofsociety and the environment.

Ecology Networks

■ Significance of environmentalinformation sharing systems

Environmental issues are global concernsthat go beyond the mere collection of information or isolated local efforts.Environmental information sharing systemscan be an effective way to promote environ-mental activities on a global scale. Ideally,such systems can be constructed to enablethe following:

● Understanding not only of the presentbut of past environmental conditions;

● Communication of a variety of relevantinformation covering social economies,history and culture, as well as the natur-al environment, to generations to come;

● Cooperation and exchange beyond theboundaries of local communities, pro-moting enhancement of environmentalawareness and unity;

● Broad- based support for environmentalinitiatives, ranging from individualhouseholds and local communities tointernational efforts.

■ Ecology networks definedAn ecology network is a typical example of alifestyle environmental information sharingsystem. Environmental information reportedby private individuals as well as informationgathered by various sensors is accumulatedinto databases at regional environmentalinformation centers. This information is madeavailable to the public, providing support fora wide range of environmental activities.

Specifically, ecology networks are expected to play a role in disclosure of envi-

ronmental information by local governments,in general environmental education, and inenvironmental research at universities andother institutions.

Today, a great deal of effort is required forquantitative definition, comprehensive evalu-ation, and appropriate disclosure of thepotential relationship between environmen-tal, lifestyle and business information whendealing with environmental protection issues.Research to develop solutions to these andother environmental concerns is being con-ducted through ecology networks.

■ IWATE-UNU-NTT EnvironmentalNetwork Joint Project

Launched in September 1998, the IWATE-UNU- NTT Environmental Network JointProject is a collaboration between IwatePrefecture, the United Nations University(UNU), and NTT Group. The project isinvolved in monitoring air and water qualityand studying potential applications of theresulting information in environmental edu-cation programs. The environmentaleducation programs are conducted jointlywith Ecology Community Plazas establishedby the Iwate Branch of NTT East.

IWATE-UNU-NTT Environmental Network Joint Project

http://www.ias.unu.edu/ecology/

Results of measurements taken at Sendai CityMuseum of Science and other educational facilitiesin Miyagi Prefecture:

http://sendai- no2.mcon.ne.jp

Ecology Community Plazas at Iwate Branch

http://eco.iwate.isp.ntt- east.co.jp/

Nitrogen DioxideMonitoring System

The NTT Lifestyle and EnvironmentalTechnology Laboratories have been engagedin R&D on atmospheric monitoring tech-nologies since fiscal 1991. This research hasresulted in the successful development ofequipment capable of easily measuring air-borne nitrogen dioxide concentrations, asignificant step toward improving the atmos-pheric environment. (Fig. 4.1- 1)

Monitoring of nitrogen dioxide is particu-larly important because nitrogen dioxide is:

● Inadequately controlled by existingenvironmental standards;

● Exhibits fluctuations in density depend-ing on time and place, thus requiringmultiple, simultaneous measurements;

● Often generated by unpredictable occur-rences such as traffic congestion.

The NTT system features compact termi-nals for ease of transportation andinstallation, while enabling remote operationand simultaneous measurement at multiplelocations via telephone networks. The easy-to- operate terminals can also be used asInternet tools for environmental education.

Electronic Commerce

In 1999, the number of Internet users inJapan increased from 17 million to 27 mil-lion. This increase has been accompanied bya surge in Internet- based trading (electroniccommerce). The value of B2C (business- to-consumer) transactions grew from ¥170billion to ¥350 billion, while B2B (business-to- business) transactions grew from ¥2trillion to ¥14 trillion.

■ Network-based information distribution

Traditionally, trucks and other forms oftransport have played the major role in thephysical distribution of goods. With theintroduction of electronic commerce, intangi-

Multimedia Communications Servicesfor Teleconferencing

■ Advantages of multimedia communications services

The NTT Group provides a variety of multi-media communications services through itsnationwide networks. Multimedia communi-cations enable people to exchangeinformation from remote locations, minimiz-ing the need to transport people andequipment and thus reducing energy con-sumption and exhaust emissions.

■ Desktop simulation of teleconferencing

The Lifestyle and Environmental Tech-nology Laboratories has conducted desktopsimulations to determine the effectiveness ofteleconferencing (Fig. 4.1-2) in minimizingenvironmental impact. At a teleconference,participants in remote locations can interactas if they were present in the same meetingroom by exchanging images and voices overa network. As teleconferencing is targeted asan important multimedia communication ser-vice, the simulations were structured as follows:

● A total of 1,657 teleconferences wereheld at NTT (the holding company) dur-ing a single year (limited to conferencesrecorded in the multi-location connector);

● Environmental impact was calculatedbased on power consumption of systemequipment (monitors, cameras, speak-ers, etc.) and telephone networks usedfor each teleconference (assumed to lastfor two hours);

● Hypothetical environmental impact of var-ious means of transportation (trains, buses,planes) was estimated, assuming that con-ferences had been held on-site with actualattendees (each conference assumed torequire two attendees from each remoteoffice and last for two hours);

● Environmental impact of on-site confer-ences vs. teleconferences werecompared and evaluated.

As a result, it was evaluated that telecon-ferencing reduces CO2 emissions byapproximately 85% and energy consumptionby approximately 74% compared to on-siteconferences. (Fig. 4.1-3)

ble information-based products such asmusic and games have become availablethrough network-based distribution. Thiseliminates the need to maintain stocks or torely on media (CD-ROMs, etc.) for distribu-tion of goods. Offering significant reductionsin energy consumption, network-based infor-mation distribution shows great potential forenvironmental protection. Digitally recordedmusic, for example, can be distributedthrough networks quickly and with much lessimpact on the environment. On the otherhand, as digital data can be copied easily,with no deterioration in quality, certain typesof network-based distribution could conceiv-ably interfere with the fair sale anddistribution of goods.

■ Overcoming technical difficulties

Electronic commerce requires effective mea-sures against unauthorized data copying. TheNTT Group has solved this problem bydeveloping a technology that locks the mem-ory card to which purchased music isoriginally downloaded and makes it impossi-ble to read any other memory card to whichthe music is copied. This technology pavesthe way for widespread network-based music sales.

Payment systems pose another securityproblem for electronic commerce. Secure andefficient systems for exchanging money andgoods are essential for promoting conversionof physical distribution into network-basedinformation distribution.

The NTT Group has developed technolo-gies for electronic cash secured by codes.Reliability and convenience of this technolo-gy were tested in actual experiments incooperation with participants from the publicat large, successfully demonstrating the secu-rity of electronic cash.

The NTT Group will expand its focus toinclude development of technologies forauthentication and network security as wecontinue our research into applications forelectronic commerce.

The initial simulation evaluated opera-tional aspects only. Further study based onLCA (Life Cycle Assessment) is planned toevaluate the environmental impact of tele-conferencing equipment from initialproduction to final disposal.

and new charging methods, the NTTTelecommunications Energy Laboratorieshave succeeded in extending the life span ofnickel metal hydride batteries to approxi-mately eight years. (Fig. 4.2-1) Plans areunderway to develop nickel metal hydridebatteries with a life span as long as the equip-ment that they power.

The traffic situation in Japan can be charac-terized by the following two facts:

● The national economy incurs a loss ofabout ¥12 trillion annually from trafficcongestion;

● Approximately 11% of automobile fuelconsumption is wasted in congestedtraffic conditions.

Intelligent Transport Systems (ITS) basedon advanced information communicationtechnology are under development with theaim of creating transportation solutions inwhich environmental impact is reduced safe-ly and efficiently by maximizing the synergyof people, automobiles and roads. (Fig. 4.1-4)

The NTT Group provides and supports awide range of information for car navigationsystems through mobile telephone networks.This useful information includes:

● Optimized reports on road conditions;● Useful information for drivers (location

of parking lots and service stations, etc.);● Automatic reports of accident locations

to emergency centers (rapid rescue systems);

● Reports on obstacles and impedimentsto traffic flow (advance warning systems).

The Group is also engaged in research anddevelopment of:

● IC card-based parking reservation systems;

● Intelligent parking systems for entryand exit from parking facilities;

● Simulators for design and evaluation ofcommunication technology-based ITSservices.



2. R&D to Promote Reduction of Environmental Impact

Fig. 4.2-1 The life span of nickel metalhydride batteries

120

100

80

60

40

20

00 2 4 6 8

Years (at 30˚C)

Battery life

Current batteries on the market

Long-life batteries (optimum charging method)

Rat

ed c

apac

ity r

atio

(%)

Photo 4.2-1 Stand-alone photovoltaic powersystem

Parking reservation

Entrance processing

Network

Discounted parking fees

Exit processingElectronic payment

User’s home

Reservation center

Affiliated retailers, etc.

Parking lot

Fig. 4.1-4 Sample ITS system (Intelligent Parking System)

Odor sensor

Tempe

rature

regu

lator

Vacuum

pump

Water

tempe

rature

regu

lator

Liquidpump

Watersample

Filter

Watersamplecontainer

Processor

Fig. 4.1-5 Odor-based water quality monitoringsystem

1000

800

600

400

200

0

0 30 60 90 120 150

-200

Time (minutes)

Frequency(H

z)

Kerosene (0.05%)input

Fig. 4.1-6 Measurement of kerosene-pollutedwater

1. Contributing to a Sustainable Society through IT


Antenna

Wireless telecomequipment .Power consumption: 50W

Cylindrical solar cell modulesPeak power: 350W

Storage battery cabinetNickel metal hydridebattery: 12V・95AhElectric double-layercapacitor: 28V・40F

Intelligent TransportSystems (ITS)

Congestion-caused air pollution should besignificantly reduced as these and other technologies to smooth the flow of trafficbecome implemented.

Odor-based Water QualityMonitoring System

Oil and chemical spills are not only sourcesof environmental pollution but can also causeserious damage to purification plants produc-ing and supplying water for daily use.Measures to minimize pollution damage atthe approximately 4,000 purification plantsin Japan include early detection, oil fences,and shutdown of water intakes. Water intakeswere shut down 32 times in 1998, 2.3 timesmore frequently than the previous year.

■ Crystal oscillator odor sensor system

The Lifestyle and EnvironmentalTechnology Laboratories have developed acrystal oscillator odor sensor system, whichcan detect petroleum gases at extremely lowppb1 concentrations. Performing the functionof the human sense of smell, the system per-mits on-line, permanent monitoring ofabnormal water odors.

In developing the system, it was necessaryto achieve stable environmental conditionsfor precision performance by controllingfluctuations in temperature and humidity thateasily affect the delicate sensor. Anotherchallenge was to ensure effective gasificationof pollutants by efficient intake of surfacewater, where pollutants tend to be concentrated.

■ Characteristics of the system● Ability to detect petroleum gases at

extremely low ppb concentrations in dryatmospheric conditions;

● Automated operation, from sampling ofriver water to output of measurement results;

● Continuous on-line monitoring.

The basic configuration and an example ofkerosene-polluted water detection are out-lined below.

Measurement of kerosene-polluted wateris indicated by the response of odor sensoroutput along a time line. Frequencies indicat-ed on the vertical axis correspond with thevolume of odor molecules detected by thesensor (1ng/1Hz). Fig. 4.1-6 shows theincrease in the volume of odor moleculesdetected by the sensor with the passing of time.

Further development is underway to achievehigher sensitivity and improve precision inidentifying types of pollutants by loweringthe regulated humidity requirements.

In addition to adopting specific pro-grams to reduce environmental impact,the NTT Group also emphasizes R&Don new energy sources and state-of-the-art technologies. Our goal is toreduce consumption of limited naturalresources and develop equipment, sys-tems and products that can be put touse with minimal impact on the environment.

Long-life Nickel MetalHydride Batteries

To ensure the reliability of communicationssystems, information communication ser-vices utilize various types of batteries,including back-up batteries, which functionas life lines in case of power outages.Although sealed lead-acid batteries are typi-cally used as back-up batteries at present, anew generation of light-weight, high-capaci-ty batteries will be needed in the future,when every home is provided with advancedservices through optical fiber cables.

■ Nickel-cadmium batteriesNickel-cadmium batteries are marketed ascompact, light-weight back-up batteries toreplace sealed lead-acid batteries. The effec-tive life of a nickel-cadmium battery isnormally less than three years. By introduc-ing new constituent materials and otherinnovations, the NTT TelecommunicationsEnergy Laboratory has developed nickel-cadmium batteries with a life span of tenyears, making them suitable for use as back-up batteries for optical access networks.

■ Nickel metal hydride batteriesCurrently, research is underway to extend thelife span of nickel metal hydride batteries,which are compact, lighter and free from poi-sonous cadmium. Nickel metal hydridebatteries currently on the market aredesigned to be repeatedly charged and dis-charged for reuse. With a life span ofapproximately 1.5 years, these batteries arenot suitable for back-up use. This is due tothe difficulty of maintaining a full charge foremergency use. By devising new materials

Conventional stand-alone photovoltaicpower systems use flat solar cells and lead-acid batteries. These require a largeinstallation area and a concrete base. Toreduce both installation area and cost, wedeveloped a system that uses cylindricalsolar cell modules and nickel metal hydridebatteries. (Photo 4.2-1)

■ Cylindrical solar cell modulesNewly developed cylindrical solar cell

modules can be mounted directly on atelecommunications pole. Maximum powerpoint tracking control (MPPT)1 increases theefficiency of the cylindrical solar cell mod-ules by 15%. Large-capacity nickel metalhydride batteries are installed as storage bat-teries. An intermittent charging unit using anelectric double-layer capacitor was developedto enhance charging efficiency of the nickelmetal hydride batteries by more than 85%.Compared with conventional systems, thisnew system can reduce installation area by90% and installation cost by 20%.

Reliability of the system is being verifiedthrough field tests in preparation for commer-cial use.

1MPPT: An automated control method that can opti-mize output power from the solar cell inconsideration of solar irradiation and the solar celltemperature.

Stand-alone PhotovoltaicPower Systems

The NTT Telecommunications Energy Laboratories are developing compact and economical photovoltaic power systems foruse as stand-alone power sources for outdoortelecommunications equipment. Solar cellsare clean power generators that do not pro-duce CO2 emissions.

1ppbParts per billion. Indicates pollutant concentrations aslow as 1/1 billion.


Fig.4.2-2 Conceptual diagram of plastic recycling technology

Heat recovery unit

Oil and other usefulchemicals


Recycling of Plastic UsingSupercritical Water

cables, with the system successfully recover-ing recyclable organic substances.

By liquefying plastics with water insteadof organic solvents, minimizing the genera-tion of volatile toxic substances, requiringshorter reaction time and enabling heatrecovery, this system shows significantpotential as a recycling technology of the future.

Fuel ModificationEquipment

Since 1999, NTT Auto Leasing has beenengaged in development of fuel modificationequipment to reduce black smoke and carbondioxide emissions from diesel-powered vehicles.

Fuel modification equipment drasticallyreduces the black smoke, NOx, and other airpollutants generated by fuel combustion,simultaneously reducing the overall volumeof CO2 emissions by improving fuel efficiency.

Efficiency is being field-tested from April2000, with installation of the devices onlarge-sized vehicles with diesel engines(trucks: 2 units, buses: 5 units).

2. R&D to Promote Reduction of Environmental Impact

Multifunctional RapidDisposal Vehicle forSewage and Sludge

Since 2000, NTT Auto Leasing has beenengaged in development of a multifunctionalrapid disposal vehicle to provide a leasablesystem incorporating combined technologyfor use against the worldwide spread of riverand ocean pollution caused by sewage and sludge.

Today, most of the run-off from construc-tion sites and dye works is not properlydisposed of, but simply diluted with hugevolumes of water and discharged into riversand oceans, accelerating the pace of river andocean contamination. This can be attributedto the huge costs that are involved in the con-struction of treatment facilities.

NTT Auto Leasing seeks to develop asolution by providing businesses lackingtheir own treatment facilities with mobile

effluent treatment systems mounted on vehicles.

The multifunctional rapid disposal vehicleis equipped to recycle effluent and sludgefrom construction sites or stock farmsthrough rapid simultaneous solid/liquid sepa-ration and deodorization. With its ability totravel to various sites, this mobile treatmentsystem will promote cost reduction and makea significant contribution to environmentalprotection.

Water

Waste plastics

Pump

Heater

The volume of waste recycled by the NTTGroup is increasing year by year. Plasticwastes, however, are difficult to recycle dueto their massive volume and the wide varietyof materials used in their manufacture. Todeal with this dilemma, the NTT Lifestyleand Environmental Technology Laboratoriesare currently developing a new recyclingtechnology to decompose plastics usingwater. (Fig. 4.2-2)

The plastic recycling technology is basedon the properties of supercritical water.Water, when heated to temperatures inexcess of 374˚C and pressurized to over 218atm, reaches a supercritical state with proper-ties that can effectively liquefy oil-basedplastics. The plastic recycling process in theabove diagram can be explained as follows:

(1) Water and crushed and fragmentedplastic are mixed as shown inFig. 4.2-2.

(2) The mixture is compressed by a high-pressure pump and sent into the tube.

(3) The mixture is heated at the halfwaypoint of the tube until the water reachesthe supercritical state. Part of the ener-gy generated by the heat is recoveredfor later cooling of the mixture.

(4) Oily residues, the raw materials ofplastic, are collected at the end of theprocess as illustrated in Fig. 4.2-2.

A prototype of the system was tested usingvarious kinds of plastics from optical fiber

Communication

● Collection and Disclosure of Information 42● Employee Education and Related Programs 44



1. Collection and Disclosure of Information

Photo 5.1-1 NTT Technology Journal

http://eco.goo.ne.jp

Photo 5.1-2 Poster for The 5th NTT-ME WorldBird Count

Fig.5.1-1 Top page of “kankyou-goo”

Fig.5.1-2 NTT’s environmental website

http://www.wnn.or.jp/wbc/wbc_e/

http://www.ntt.co.jp/kankyo/e/index.html

Communication5

Award title Sponsor Recipient

The Energy

Conservation CenterNTT (the holding company)

NTT Musashino R&D center

NTT DoCoMo

NTT Facilities

NTT Lifestyle and Environmental Technology Laboratories

Urban Greenery Foundation and the Yomiuri Shimbun

Japan Eco-Life Center and

the Nihon Keizai Shimbun

Japan Society of Refrigerating

and Air Conditioning Engineers

Japan Society for

Environmental Chemistry

Chart 5.1-1 Environmental awards (fiscal 1999)

Komatsu Branch (former)

ActivityCompany Recipient

Development of a water purifier using MPM, a new material recycled from telephone directories and other used paper

NTT Information Sharing Laboratories

Attainment of ISO14001 certificationNTT West


Chart 5.1-2 President’s Awards for global environmental protection activities (fiscal 1999)

1. Collection and Disclosure of Information

Environmental Awards

The NTT Group’s environmental protectionefforts have earned recognition and awardsfrom various organizations. Chart 5.1-1 listscommendations awarded to the NTT Groupin fiscal 1999.

Commendations for GlobalEnvironmental Activities

NTT Group member companies are present-ed with President’s Awards for globalenvironmental protection activities.President’s Awards presented in fiscal 1999are listed in Chart 5.1-2.

NTT Technology Journal

Environmental activities are regularly fea-tured in the in-house NTT TechnologyJournal. The November 1999 issue includeda special feature on “Energy in The Era ofEmissions” to report the involvement of theinformation sharing sector in energy-relatedand air pollution prevention measures, wastereduction and recycling, as part of the largertrend toward an environmentally aware society.

Ecology Portal Site

“kankyou-goo” is a web-based portal sitespecializing in environmental informationoperated by NTT-X. Launched on August 4,1998, kankyou-goo has been serving as aninformation dissemination and retrieval siteto support environmental communication andhighlight the activities of environmentalbusinesses.

Environmental Website

An NTT Group website, Telecommuni-cations in Symbiosis with the Earth—NTTGroup, was launched in 1995. The content ofthis environmental site was entirely renewedto coincide with the publication of the NTTGroup Environmental Protection ActivityReport 1999 and the adoption of the NTTGroup Global Environment Charter in 2000.The environmental website also providesinformation in English.

World Bird Count

NTT-ME sponsored The 5th NTT-ME WorldBird Count (WBC), the world’s largest bird-ing event, from October 1 through 31, 1999.The World Bird Count aims to highlight theimportance of nature and environmental pro-tection through this annual event, in whichpeople all over the world participate in a tallyof wild birds, an essential index for assessing

The 3rd WBC, with 5,935 species reportedfrom 183,476 participants in 88 nations andregions, is listed in the Guinness Book ofRecords as the world’s largest birding event.

NTT-ME contributes ¥1,000 per species toBird Life International, a leading internation-al conservation organization for wild birds.The total budget for contributions is¥5,000,000, and the money is utilized indeveloping the world’s largest natural envi-ronment database.

The site is characterized by:● “kankyou-goo Search”, a search engine

utilizing the same technology used byJapan’s leading portal site “goo”;

● “kankyou-goo News” providing up-to-date environmental information;

● “kankyou-goo Business” to support cor-porations dedicated to environmentalprotection;

● “kankyou-goo Communication Square” aforum for corporations, NGOs and con-sumers.

Registering as many as 280,000 pageviews per month at the time of its initiallaunch, the site broke the one million pageview mark in March 2000. The site currentlyhas 20,000 individual subscribers to its envi-ronmental information e-mail service.

As an extension of its activities, kankyou-goo sponsored a symposium on“Considerations for NGO/CorporationPartnerships” in June 2000. The site will

continue to support various environmentalinitiatives and contribute to building a sus-tainable society by offering a venue forconsumers, corporations and NGOs to shareenvironmental information.

prevailing environmental conditions.The 5th World Bird Count focused on the

theme of “Neighborhood Birds”. Reports ofwild bird sightings were received via theInternet, e-mail, fax and telephone from allover the world.

The 5th WBC event generated the follow-ing statistics:

● Participating nations and regions 99● Number of participants 192,482● Number of species reported 5,560Detailed results can be viewed on the

World Bird Count website.


Communication5


2. Employee Education and Related Programs

Photo 5.2-3 NTT Group EnvironmentalProtection Activity Report 1999(Japanese/English)

World Business Council for Sustainable Development (WBCSD)

Global Environmental Forum (GEF)

Japan Environmental Education Forum (J.E.E.F)

Global Environmental Action (GEA)

Organization Activities

Green Purchasing Network (GPN)

The Keidanren NatureConservation Fund

Chart 5.2-1 NTT participation in environmental protection organizations

Photo 5.2-1 The Road to Establishment ofEnvironmental Management Systems—Working Toward ISO Registration

Photo 5.2-2 NTT Group EcologyProgram 21

The NTT Group endeavors to promoteawareness of the environment andenvironmental protection activitiesthrough internal publications and semi-nars for Group employees.

Working Toward ISORegistration

Since August 1997, the NTT Group hasworked on selection of model offices to pro-mote the establishment of environmentalmanagement systems in compliance with ISO14001 guidelines. The Road to Establishmentof Environmental Management Systems—Working Toward ISO Registration, featuringcase studies for the establishment of environ-mental management systems, on-goingprograms, the NTT Group’s environmentalprotection activities, and other reference onenvironmental management systems, wascompiled and distributed to all employees inJune 1999.

Environmental Brochure:NTT Group EcologyProgram 21

A brochure introducing NTT Group EcologyProgram 21, the Group’s guidelines for envi-ronmental protection efforts in the 21stcentury, was distributed to all employees.

In this publication, Mr. Miyazu, presidentof NTT (the holding company), states hisexecutive view of environmental issues andvision for the NTT Group’s future direction.

Report on NTT GroupEnvironmental ProtectionActivities

In December 1999, the NTT Group publishedits first official environmental report. NTTGroup Environmental Protection ActivityReport 1999 mainly highlights environmentalprotection activities undertaken during fiscal 1998.

External Cooperation

The NTT Group participates in, supports, orcooperates with the following environmentalprotection organizations.

http://www.ntt.co.jp/kankyo/e/1999report/index.html

Social Contributions to Environmental Protection

● NTT Group Ecology Community Plazas 46● DoCoMo Forests and DoCoMo Volunteers’ Club 48

47NTT Group Environmental Protection Activity Report 200046

Local residents

Local businessesSchools

Akanoi Bay Council

Citizens’ organizations/NPOs

Oumi Network Center

Building an Akanoi Bay Environmental Information Network

with residents’ participation

Project committeePlanning & implementing

field experiments

Shiga Branch,NTT West

Shiga PrefectureNTT Science & Core Technology Laboratory Group (Lifestyle and

Environmental Technology Laboratories)

Project to create environmental information networks with

citizens’ participation

1

Fig.6.1-2 Activities of Shiga Branch, NTT West


1. NTT Group Ecology Community Plazas

http://eco.iwate.isp.ntt-east.co.jp/

Ecology Community Plaza

● Iwate environmental database● Hosting websites to introduce environmental activities of various organizations

● Forming a local ecology community

Support for environmental education programs

● Providing workshop space● Website production workshops etc.

InternetEcology Community Plazas (six locations throughout the prefecture)

Plaza server

● Lending electronic equipment

Ecology Community Plaza

Fig. 6.1-3 Ihatov Ecology Community Plaza support for environmental activities

Event

Set up a corner for viewing environmental websites and provided supportfor open classrooms based on teleconferencing and the Internet.

Provided staff to follow course of river and collect real-time water qualitydata. (Ichinoseki)

Conducted an Internet workshop and an environmental Internet seminarfor Kids’ Eco Club and other organizations. (Kamaishi)

Lent digital cameras to Kids’ Eco Club, etc. for an environmentalexploration of the city. Findings were reported in a website produced bythe children. (Morioka)

Description

Sanriku Virtual Diving (September 1999)

Kitakami River Governorship in 99(October 1999)

Environmental Education Forum 21(December 1999)

Eco-exploration in the City (March 2000)

Environmental Seminar (March 2000)

1Oumi Network CenterEstablished in April 1997 with funding from Shiga Prefecture and local municipalities. Operated by theOumi Culture Promotion Foundation for the purpose of providing general support to citizens’ voluntary andnon-profit social activities.

Social Contributions to Environmental Protection6


①NTT Group Global Environment Charter

③ R&D in state-of- the-art environmental technologies



N

TT Group Ecology Community Plaza

②Contribution to local environmental protection

Chart 6.1-1 Major initiatives

Ecology CommunityActivities at Shiga Branch, NTT West

■ Promotion of environmentalprotection in close contact withlocal communities

Shiga Prefecture, home of Lake Biwa,Japan’s largest freshwater lake, has estab-lished a reputation as a local governmentwith an active environmental agenda. Havinghosted the G8 Environmental Summit in 2000, the prefecture now attracts world-wide attention as an environmentalinformation center.

“Contribution to local environmentalprotection” is one of the three maincomponents of the NTT Group EcologyProgram 21. As part of our efforts inthis direction, the Shiga Branch of NTTWest and the Iwate Branch of NTT Easthave been designated as modelbranches for establishment of NTTGroup Ecology Community Plazas.These Community Plazas promoteclose contact with their local communi-ties through dissemination andexchange of information on a widerange of environmental issues.

The Shiga Branch of NTT West has beeninvolved in organizing a reed-cutting pro-gram in cooperation with citizens of Otsu.Reeds grow wild on lakesides, riversides andmarshes all over Japan. Mowing the reedsreduces eutrophication and contaminationcaused when methane gas is generated byovergrown reeds as they die and decompose.The Shiga Branch also exhibited environ-mental technology at the second annualShiga Prefecture-sponsored “KankyoBusiness Messe,” an environmental trade fairheld in Nagahama City in 1999. More than

190 corporations, universities and institutesparticipated under the theme of “A Messagefrom Lake Biwa: Creating EnvironmentalBusinesses”.

The Shiga Branch of NTT West is workingto forge close ties with the local communitythrough its ongoing environmental efforts.From 2000, the NTT Science & CoreTechnology Laboratory Group and ShigaPrefecture have initiated a joint project tocreate an environmental information networkwith the participation of local citizens.

Fig. 6.1-1 Three main components of NTT Group Ecology Program 21

1. NTT Group Ecology Community Plazas

Ihatov Ecology Community Plazas, Iwate Branch, NTT East

■ Supporting environmentalactivities in the local community

Designated an NTT East model branch,Iwate Branch and its five offices in IwatePrefecture actively support environmentaleducation as part of an ongoing program con-ceived to insure that the natural environmentof Iwate can be preserved for generations tocome. Ihatov1 Ecology Community Plazas atIwate Branch offices also provide space for avariety of activities, including the dissemina-tion and exchange of information to promoteformation of an environmentally awareregional community.

■ Specific activities at the IhatovEcology Community Plazas

Providing space for activitiesIwate Branch provides space at IhatovEcology Community Plazas for various envi-ronmental activities, including children’sorganizations such as “Kids’ Eco Club” and“Young Supporters of the Forest”. PC-basedteleconferencing and other multimediaequipment is also available for meetings andactivities.

Support for implementation and management of environmental education programsThrough the Environmental Network JointProject (Iwate Prefecture, The United NationsUniversity Institute of Advanced Studies andNTT Science & Core Technology LaboratoryGroup), the NTT East Iwate Branch isinvolved in implementation and managementof environmental education programs andalso supplies a range of essential communi-cation equipment.

Creating environmental information databasesEnvironmental information from all overIwate Prefecture is accumulated in databaseswhich will be accessible to the public via a website.

Support for collection and dissemina-tion of environmental informationTo maximize public interest in environmen-tal issues, the Iwate Branch assistsenvironmental education organizations byproviding support for active dissemination ofinformation. Internet training sessions andwebsite production workshops are also heldat Ihatov Ecology Community Plaza sites.

Building human ecology networksThe Iwate Branch participates in inter-organizational exchanges utilizing tele-conferencing facilities at Ihatov EcologyCommunity Plaza sites. The branch is also training local environmental activitycoordinators to assist in building humanecology networks.

The Iwate Branch will also invite localbusinesses that have taken an environmentalstance within the prefecture to play a broaderand more active role in environmental pro-grams initiated by citizens’ organizations andschools nationwide, with Ihatov EcologyCommunity Plazas serving as the nucleus ofthese expanded activities.

1IhatovPoet and author of children’s books, Kenji Miyazawa,created this nickname, meaning ‘Dreamland’, forIwate Prefecture.

Provided technical staff for interactive classrooms in which schools wereconnected via the Internet to ocean-based cameras transmitting liveunderwater film. (Ofunato)


48

Regional volunteer activities

Platform for information exchange

Motivation for volunteer activities Social Welfare

Conference and other organizations

Information exchange

Support Cooperation

DoCoMo Volunteers’ Club secretariat (Community & Environment Section)

● Holding club meetings● Providing information through website● President’s commendation program● Promotion and encouragement of volunteer spirit

■ Internal PR by Alles■ Organization of seminars■ Implementation of field programs■ Production of posters and handbooks

Company support

Volun & Teer

DoCoMo Volunteers’ Club

Information exchange

1

Fig.6.2-1 Diagram of volunteer activities

Photo 6.2-1 Participants gather for acommemorative photo during thefirst DoCoMo Forest event


www.nttdocomo.co.jp/corporate/mesena/100/mori.html

DoCoMo Volunteers’Club mascots

Date: Saturday, May 15, 1999

Place: Namerayama NationalForestTokuji-cho, Saba-gun,Yamaguchi Pref.

Area: 2.8haJapanese red pine, fir,wild cherry, Japanesewalnut, zelkova, beech,and oak; total 250 seedlings

Participants: Approx. 45 employeesfrom NTT DoCoMo andNTT DoCoMo Chugoku

Date: Saturday, October 23,1999

Place: Yozuku National ForestYamakitamachi,Ashigarakami-gun,Kanagawa Pref.

Area: 2.87haWild cherry, zelkova,maple, and beech; total 200 seedlings

Participants: Approx. 50 employeesfrom NTT DoCoMo

Chart 6.2-1 DoCoMo Forests tree-plantingprograms

The

1stD

oCoM

oF

ores

tT

he2n

dD

oCoM

oF

ores

t

Social Contributions to Environmental Protection6

1Alles“Alles” is a Dutch word for “all”, and the name of the in-house monthly magazine of the NTT DoCoMo Group.The magazine, based on the concept that all readers are its editors, provides coverage of topics, trends,executive introductions, reports, technological information, and social contributions.

DoCoMo Forests

Since 1999, the NTT DoCoMo Group hassponsored DoCoMo Forests, a nationwidetree-planting program supported by the vol-untary participation of DoCoMo employees.Volunteers learn about forestry through participation in projects such as plantingnative species, clearing undergrowth, thin-ning forests for sunshine, constructing forestwalks, and bridging streams.

Based on the Green Fund system of theNational Land Afforestation PromotionOrganization and the Corporate Forests pro-gram of the Forestry Agency, DoCoMoForests are scheduled to be planted in tworegions a year for a total of nine differentregions (each home to one NTT DoCoMoGroup member company) over the next five years.

2. DoCoMo Forests and DoCoMo Volunteers’ Club

DoCoMo Forests

DoCoMo Volunteers’ Club

NTT DoCoMo employees established theDoCoMo Volunteers’ Club in 1996 toencourage participation in community ser-vice programs by providing a platform forinformation exchange, motivating employeesto participate, and offering company support.The Volunteers’ Club is engaged in a rangeof activities, including dissemination andexchange of information via its website andvolunteers’ meetings. The Club has publisheda handbook summarizing employees’ activi-ties, such as participation in Operation CleanEnvironment and the DoCoMo Forests pro-gram. The scope of the club’s activities isexpanding to include recognition of volun-teer leave, establishment of president’scommendations and other in-house programs. ■ Basic policies

● Voluntary participation● Volunteer activities as a source of

happiness rather than a sacrifice● Participation at a sustainable level

■ Activities● Providing information through website

and e-mail● Holding Volunteers’ Club meetings● Implementation of field programs● Promotion of cooperation with

local communities● Participation in volunteer

seminar programs

Planted species:

Planted species:

AppendixAppendix

Appendix

NTT Group Information

● Editor’s Notes 50● Terminology 51● Index 53● The History of NTT Group’s Environmental

Protection Activities 54● Requests for Information 55● Data 56

Terminology

1. Anti-idling campaign

A movement to encourage drivers to turn off theengine when cars are stopped. The purpose of thecampaign is to minimize emissions of carbon dioxideand nitrogen oxide, reduce noise, and save energy.The NTT Group is promoting participation in the cam-paign by affixing stickers to all company cars anddistributing leaflets to employees. This campaign wasawarded an Effort Prize at the 1st Eco-Drive Contestin 1998.

2. CFCs

Compounds of methane or ethane in which chlorine orfluorine substitutes for hydrogen. Offering chemicalstability and cleansing power and originally consid-ered harmless, CFCs were widely used in variousproducts until their use was internationally restricted in1987 due to their destructiveness to the ozone layer.The NTT Group completed the elimination of CFCsused for cable gas leakage detection and washingcrossbar switch contacts in 1995.

3. Cogeneration

Utilization of waste heat emitted by gas turbine ordiesel power generators as a heat source for heating,air conditioning or refueling. Due to waste heat andlosses during power distribution, electric energy typi-cally available from a power plant is only about 35%of the fuel energy used in power generation. Withcogeneration, which captures 20-30% of electric ener-gy and 40-50% of thermal energy, 60-80% of fuelenergy becomes available.

4. Ecology Community Plaza

A platform for building regional ecology communitiesthrough dissemination and exchange of informationon environmental issues. The Iwate Branch of NTTEast and Shiga Branch of NTT West have been des-ignated model branches with Ecology CommunityPlazas serving as bases for the NTT Group’s environ-mental protection activities, which are diversified andbased on local needs.

5. EMC (Electro-magnetic Compatibility)

The ability to properly function in an electro-magneticenvironment without causing electromagnetic interfer-ence affecting other machines, equipment or systems.

6. Environmental management systems

A set of systems and procedures to identify the envi-ronmental impact of a company's businesses, goodsand services, and to aim to continuously improve the

environment by establishment of goals, inspectionsand review. The NTT Group is promoting environmen-tal management systems compliant with ISO 14001guidelines.

7. Environmental monitoring

The process of gathering objective data on environ-mental conditions and making decisions based on ascientific approach to protect human health and livingenvironments. Since 1991, the NTT Group has beenengaged in R&D on environmental monitoring tech-nology to safeguard against air and water pollution.

8. Green Building Design Guidelines

Guidelines established in 1997 to minimize energyconsumption and waste in the construction and opera-tion of buildings. The guidelines require that buildingsbe designed to minimize environmental impactthroughout their life cycle.

9. Greenhouse gases

All the gases in the atmosphere including carbon diox-ide and vapor that cause global warming by absorbinginfrared energy radiated from the earth and convertingit into heat. Dozens of pollutants, including carbondioxide, CFCs and methane, are emitted from indus-tries and households. COP6 has set targets forreducing six kinds of greenhouse gas.

10. Green Procurement Guidelines

Established in July 1997 (revised in August 1999),these guidelines place priority on procurement ofproducts designed to minimize environmental impact.Restriction of harmful materials, encouragement toindicate composition/disposal instructions, and pro-posals for ways to recycle/dispose are covered in the guidelines.

11. Green R&D Guidelines

Guidelines established in March 2000 for R&D of newservices, systems and products in response to theemergence of a “recycling-based society.” DetailedEnergy R&D Guidelines were also established in March2000 to realize minimum consumption of energy.

12. Hybrid cars

Vehicles powered by a combination of gasoline ordiesel and electricity, with advantages of each powersource generating high efficiency. Although furtherimprovement is needed in terms of cost and produc-tion processes, hybrid cars are low-pollution vehicleswith low fuel costs and high environmental viability.


Editor’s Notes

NTT Group Environmental Protection Activity Report 2000The NTT Group published the NTT Group Environmental Protection Activity Report 1999, the first report detailing the Group’senvironmental activities, in fiscal 1999.This 2000 version of the report was edited based on the reaction of readers—both positive evaluations and criticisms—to the 1999 report. There may still be much room for improvement, and we welcome readers’ opinions and comments concerning this report.

Items announced in the 1999 report

To reduce the number of printed copies, future issues willbe provided primarily on the Internet.

Results of our environmental accounting project will bereleased as soon as they are finalized.

By updating the content of our environmental website and reducing thenumber of copies distributed internally, the total number of printed copieshas been reduced by 80%.Website: http://www.ntt.co.jp/kankyo/e/index.html

Currently under consideration

43

18

Page number in 1999 edition

Action plan

■ This report is scheduled to be updated and issued annually in 2001 and beyond. Annual Environment Report Publication Project Environmental Promotion Office, Nippon Telegraph and Telephone Corporation

15

15

15

16

16

18

19

20

21

21

22

22

23

Current status and reason for omission

URL

http://www.ntt.co.jp/kankyo/1999report/e/env/04/04index.html







31

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing with goal of total elimination in fiscal 2000

Completed

Completed

Completed

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Ongoing

Paper Resource Management

Introduction of recycled paper into telegram paper; use of environment-friendly materials

Introduction of recycled paper into bills and other documents

Activities in office paper recycling: Kanazawa

Paperless office through use of the internal intranet system

Lightning Fax

Global Warming

Low-power devices

Water purification system based on solar power generation

Fuel cell

Proper disposal of soil removed from civil engineering work sites and other construction waste products

Proper disposal management of construction-related waste products (construction waste and removed soil)

Proper disposal of medical waste products

Disposal of general office and industrial waste products

PCB storage and harm-free processing technologies

Asbestos replacement (buildings/bridges)

Waste Management

Promoting Recycling

Handling of nickel-cadmium batteries

New materials derived from papermaking sludge produced in the paper recycling process

Recycling soil removed from construction sites

Protecting the Ozone Layer

Elimination of CFCs used for cable gas leakage detection

Elimination of CFCs used for washing crossbar switch contacts

Elimination of CFCs used for washing semiconductors

Elimination of specified halon used as fire-extinguishing agent

Preventing Soil Contamination

Measures to prevent soil contamination (automatic oil leakage detection system for underground tanks at communication power sources)

Information Sharing

Environmental monitoring/sensing technologies

Participation in research on migration paths of migratory birds with ultra-small position transmitters

Automated Meteorological Data Acquisition System (AMeDAS™)

Ecological survey of albatrosses

Meteorological survey experiments at the Shiragami mountains, a World Heritage site

Information processing system for greenhouse gases at the Japan Meteorological Agency

Regional air pollution monitoring systems

Telecommuting (Tele-work)

Item

23, 24

25

27

27

28

28

28

30

32

33

33

33

33

34

34

34

Activities covered in the 1999 report that are not included in the 2000 editionThe 2000 edition focuses on activities initiated in fiscal 1999, while some ongoing activities from fiscal 1998 were omitted to save space.

Item Result Refer to page

13. Industrial waste

Ordinance-designated waste generated in commercialoperations, including cinders, sludge, waste oil, wasteacid, waste alkali, and waste plastics are called indus-trial waste. Among these, “controlled industrialwastes” are explosive, poisonous, infectious, or thosewith any other property that is defined by ordinance asharmful to human health or the environment.

14. Intelligent Transport Systems (ITS)

Systems for realizing a safe, smooth and environmen-tally fr iendly transportation environment bymaximizing the advantages of sophisticated informa-tion sharing technologies. The NTT Group providescar navigation systems through mobile telephone net-works and support systems that enable quickresponse to emergencies.

15. Material recycling

A typical process for recycling plastic: waste plastic iscrushed into pellets, which are then heated andreformed. In material recycling, it is important toensure that plastics are sorted by type. Recycled plas-tic products employed by the NTT Group includeconnection terminal boxes (made of polypropylene)and support line guards (made of polyethylene).

16. Municipal waste

Waste and sewage produced in the course of daily liv-ing. Municipal waste is classified into two categories:household wastes and waste from shops, offices andfactories which is not specified as industrial waste.

17. NGO (Non-governmental Organization)

Non-governmental, international organization formedby individual citizens or citizens’ groups. NGOs areengaged in a wide range of activities including envi-ronmental protection, development assistance, andpopulation issues, advocating citizens’ voices at UNand other international authorities.

18. Nickel-cadmium batteries

Secondary batteries that can be recharged hundredsof times and can withstand large variations in temper-ature. Among other advantages, nickel-cadmiumbatteries are characterized by high recyclability. As part of efforts toward more efficient recycling of resources, the NTT Group is marking products withindications for separate collection and providing recycling boxes.

19. Nickel metal hydride batteries

Able to be recharged approx. five hundred times,these recyclable and resource-saving batteries are

much more economical than conventional dry-cell bat-teries. Nickel metal hydride batteries are widelyheralded as a solution to environmental and wasteissues, and as an answer to recent needs for batterieswith larger capacity.

20. PCBs (polychlorinated biphenyl)

Synthetic organic compounds, PCBs were used invarious applications due to their nonflammable, heat-resistant, refrigerant, and electric insulatingproperties. PCBs, however, are extremely poisonousand tend to accumulate, causing environmental pollu-tion, and production and sale were banned in 1972.

With the cooperation of local governments, the NTTGroup plans to dispose of stockpiled PCBs as earlyas possible, utilizing the alkali catalyst decomposition(BCD method).

21. PDCA (Plan-Do-Check-Action)

Environmental protection activities within the NTTGroup are planned and then carried out at the divi-sional level. Each activity is checked by internal auditsand the results are reflected in plans and objectivesfor subsequent fiscal years.

22. Supercritical water

Supercritical fluids are characterized by liquidity thatmelts objects and, at the same time, with a gaseousnature that exhibits excellent diffusion. Among these,supercritical water is particularly effective as a reac-tion agent and is used for extraction, disposal andremoval of pollutants within effluent, as well as dis-posal and recycle of waste plastics.

23. Thermal recycling

A method to utilize the energy of heat and vapor emit-ted from incineration of waste and municipal garbage.In practice, energy can be used not only for simplecombustion, but can also be used in pyrolysis to cre-ate fuel; in furnaces as fuel/reducer; or as fuel inproducing cement. Ash can also be recycled into cement.

24. TPR initiative

The NTT Group approach to electric power issuesbears the tit le, TPR (Total Power Revolution)Campaign. Power consumption is expected toincrease with advances in information sharing tech-nology. Since 1997, the NTT Group has implementedits TPR Campaign to accelerate reduction of dailypower consumption and approach power issues at theR&D level.


Index

Clean energy (solar and wind power) facilities ……………27

Closed-loop recycling of telephone directories ……………25

Communication ………………………………………………41

Consumption of virgin pulp …………………………………24

Crystal oscillator odor sensor ………………………………38

Cylindrical solar cell modules ………………………………39

Disposal of dismantled communication facilities and equipment ……………………………………………………29

DoCoMo Forests………………………………………………48

DoCoMo Volunteers’ Club……………………………………48

Ecology portal site ……………………………………………43

Ecology Community Plazas …………………………………47

Ecology community activities at Shiga Branch of NTT West……………………………………………………46

Ecology networks ……………………………………………36

Effect of radio waves on humans ……………………………34

Electronic commerce …………………………………………37

EMC (Electro-magnetic Compatibility) ……………………34

Employee education …………………………………………44

Energy-saving building (the main building of Musashino R&D Center) ……………27

Environmental accounting ……………………………………18

Environmental audits …………………………………………17

Environmental awards ………………………………………42

Environmental brochure: NTT Group Ecology Program 21 …………………………………………44

Environmental information sharing systems ………………36

Environmental management system ………………………16

Environmental Protection Awards …………………………42

Environmental Report 1999 …………………………………44

Environmental risk management ……………………………18

Environmental website ………………………………………43

Examples of ISO 14001 certification ………………………16

External cooperation …………………………………………44

Fuel modification equipment …………………………………40

Green Building Design Guidelines ……………………19, 22

Green Procurement Guidelines …………………………19, 22

Green Procurement/Green Purchasing ……………………22

Green R&D Guidelines …………………………………19, 21

Ihatov Ecology Community Plazas, Iwate Branch of NTT East ……………………………………47

Improving packing and packaging materials ………………31

Intelligent Transport Systems (ITS) …………………………38

Internal CFC banks……………………………………………33

IWATE-UNU-NTT Environmental Network Joint Project ……………………………………………………36

Long-life nickel metal hydride batteries ……………………39

Major targets of action plan for 2000 ………………………12

Major targets of action plan for 2010 ………………………13

Management of paper resources ………………………12, 24

Manifests …………………………………………………17, 29

Measures against environmental risks ……………………34

Multifunctional rapid disposal vehicle for sewage and sludge ………………………………………40

Multimedia communication services (teleconferencing) ……………………………………………37

New shipping network system ………………………………28

Nickel-cadmium batteries ……………………………………39

Nickel metal hydride batteries ………………………………39

Nitrogen dioxide monitoring system…………………………36

NTT Corporate and Group profile ……………………………4

NTT Group Ecology Community Plazas ……………………46

NTT Group Ecology Program 21 …………………………8, 44

NTT Group Global Environment Charter ……………………9

NTT Group, structure of ………………………………………5

NTT Technology Journal ……………………………………42

Odor-based water quality monitoring system………………38

PDCA …………………………………………………………14

Plastic recycling ………………………………………………30

Plastic recycling using supercritical water …………………40

Prevention of global warming……………………………12, 26

Promoting reuse of dismantled telecommunication facilities and equipment ………………………………………30

Protecting the ozone layer ………………………………12, 33

Recycling box for confidential documents …………………32

Recycling cellular phones/PHS units and batteries ………31

Reduction of CO2 emissions from company vehicles ……28

Repellets ………………………………………………………30

Reuse cycle ……………………………………………………30

Self-monitoring ………………………………………………17

Stand-alone photovoltaic power systems …………………39

Systems for promoting environmental protection …………11

TPR initiative …………………………………………………26

Turbo freezers …………………………………………………33

Waste management………………………………………12, 29

Working Toward ISO Registration …………………………44

World Bird Count………………………………………………43

Zero Kitchen Garbage ………………………………………32

53NTT Group Environmental Protection Activity Report 2000

The History of NTT Group’s Environmental Protection Activities


For further information, please contact us at the following address. Your comments will also be appreciated.

Environmental Protection OfficeNippon Telegraph and Telephone Corporation

3-1, Otemachi 2-Chome Chiyoda-ku, Tokyo 100-8116 Japan

Fax: +81-3-5205-5329

URL: http://www.ntt.co.jp/kankyo/e/index.html

E-mail: [email protected]

Requests for Information

NTT Group’s Environmental Initiatives

NTT Group: A Chronology

19501946 ● Recycling of communication

cables initiated

1963 ● Model 600 telephone unitsprovided based on reuse

1952 ● Nippon Telegraph and TelephonePublic Corporation founded

1968 ● Pocket-bell pager service initiated

1972 ● “Catch-phone” (cut-in) service initiated

1960

1970

1980

1990

1973 ● Clean Recycle Committeeestablished

1975 ● Use of recycled paper fortelephone directoriesinitiated

1985 ● “Operation Clean Environment” started

1987 ● Save POWER campaign (thru 1995)(Energy-saving initiative)

1991 ● Environmental Issues Office established

● Global Environmental ProtectionPromotion Committee established

● NTT Global Environment Charteradopted

● NTT Global EnvironmentalProtection Fundamental Programestablished

1992 ● Detailed programs defined● Global Environmental Protection

Award established● Report on NTT Group’s dedication

to environment (in the monthly NTT BUSINESS)

1978 ● Succeeded in activating the circulationof subscriber telephone units

1979 ● Car telephone service initiated

1982 ● Introduction of card-paid public telephones

1985 ● Nippon Telegraph and TelephoneCorporation incorporated

● Path for optical fiber cables completedfrom Asahikawa through Kagoshima

● Toll-free services initiated

1983 ● Completed nationwide network of instant auto-matic connections with Tokyo and OgasawaraChichijima Island connected via satellite

1986 ● NTT Urban Development operations launched● NTT-TE companies operations launched

(thru 1989)1987 ● NTT Auto Leasing operations launched

● Cellular phone service initiated1988 ● NTT DATA Communication operations launched

● INS Net 64 service launched in Tokyo, Nagoyaand Osaka

1991 ● NTT LOGISCO operations launched

1992 ● NTT DoCoMo operations launched● NTT Facilities operations launched

19951995 ● Complete elimination of any new applications of CFCs

● Publication of environmentalbrochure, Global CoexistenceTelecommunications-NTT Group

● Launch of environmental website,Telecommunications in Symbiosiswith the Earth - NTT Group

● Super Save POWER campaign (thru 1998) (energy-saving initiative)

1996 ● OCN service initiated

1997 ● NTT Communicationware operationslaunched

1998 ● Disaster message dial service initiated

1999 ● NTT reorganization● NTT East and NTT West founded and

launched ● NTT Communications operations launched● NTT-ME Group operations launched

(thru 2000)● NTT-ME Information Sharing (NTT-X)

operations launched● NTT (the holding company) establishes

Telecommunications Energy Laboratories and Lifestyle and Environmental Technology Laboratories

● “i-mode” service initiated● Introduction of IC-Card public telephones● International telephone service started2000

1997 ● Green Procurement Guidelinesestablished

● Total Power Revolution (TPR)Campaign initiated

● Green Building Design Guidelinesestablished

● Material Procurement Dept. attainedthe first ISO 14001 certification inNTT

● Revision of environmental brochure,Global CoexistenceTelecommunications-NTT Group

1999 ● NTT Group Global EnvironmentalProtection Promotion Committeeestablished

● NTT Group Ecology Program 21, the basic policy of NTT Group’senvironmental protection activities,established

● NTT Group Environmental ProtectionActivity Report 1999 published

2000 ● Green R&D Guidelines established

1970

1980

1990

1972 ● United Nations Conference on theHuman Environment (Stockholm)

● Rome Club announced “The Limits toGrowth”, stressing the finiteness ofnatural resources, coining theexpression “Spaceship Earth”

1973 ● 1st Oil Shock 1979 ● 2nd Oil Shock

● Accident at Three Mile Island nuclearpower plant in USA

1985 ● Vienna Convention for the Protectionof the Ozone

1986 ● Disaster at Chernobyl nuclear powerplant in former USSR

1987 ● Montreal Protocol

1988 ● Intergovernmental Panel on ClimateChange (IPCC) established

1990 ● IPCC First Assessment Report

1991 ● Negotiation for the United NationsFramework Convention on ClimateChange begin

1992 ● United Nations Conference onEnvironment and Development (Rio de Janeiro)

1994 ● The United Nations FrameworkConvention on Climate implemented IPCC Second Assessment Report

Domestic and International Trends

1995 1995 ● The 1st Conference of Parties of theUnited Nations Framework Convention onClimate Change (Berlin)

1996 ● The 2nd Conference of Parties of theUnited Nations Framework Convention onClimate Change (Geneva)

● ISO “Standards for EnvironmentalManagement and Audit” established

1998 ● The 4th Conference of Parties of theUnited Nations Framework Convention onClimate Change (Buenos Aires)

1999 ● The 5th Conference of Parties of theUnited Nations Framework Convention onClimate Change (Bonn)

1997 ● UNGASS (Special Session of the UnitedNations General Assembly for the OverallReview and Appraisal of theImplementation of Agenda 21)

● The 3rd Conference of Parties of theUnited Nations Framework Convention onClimate Change (Kyoto) (Kyoto Conferenceon Prevention of Global Warming: COP3)

Domestic and International Trends

NTT Group’s Environmental Initiatives

NTT Group: A Chronology


Data

(1) Group member companies covered in this report

Company

FY Item


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*Application of Green Building Design Guidelines has been expanded to 10 companies as follows: NTT (the holding company), NTT East, NTT West, NTT Communications, NTT DoCoMo, NTT DATA, NTT Facilities, NTT Urban Development, NTT Communicationware, and NTT Business Associates.

NTT (theholding

company)

NTT East

NTT West

NTT Communi-

cations

NTT DoCoMo

Group

NTT DATA

NTT Facilities

NTT Urban

Develop-ment

NTT Communi-cationware

NTT-ME Group

Dat

a co

llect

edC

urre

nt s

tatu

s of

sh

ared

pol

icie

sTa

rget

s fo

r m

ajor

act

ion

plan

s

Thru fiscal 1998

Fiscal 1999

Fiscal 1999

Fiscal 1999

NTT Group data

NTT Group data

Data on measures against global warming

Data on measures against global warming

TPR (Total Power Revolution) Campaign

Green Procurement Guidelines


Green Building Design Guidelines


Telegram paper

Invoices and other documents

Waste management

Communication facilities

Civil engineering sites

Construction sites

Offices


Electricity consumption

Gas/fuel consumption

Use of company vehicles

Protection of the ozone layer

0

50

100

150

200

250

1994 1995 1996 1997 1998 1999

(Number of vehicles)

(3) Prevention of global warming

Fig.5 CO2 emissions*CO2 emissions from gas/fuel consumption and company cars partially estimated by sample surveys.

0

500

1,000

1,500

2,000

2,500(1,000t-CO2)

1990 1994 1995 1996 1997 1998 1999

Fig.6 Eco-efficiency

0

1

2

3

4

5

6

1990 1994 1995 1996 1997 1998 1999

(Sales of 1 million yen/CO2 emissions in tons)

Fig.8 Power generation by clean energy

Hybrid

Fuel cell

Wind power

Solar power

Fig.9 Clean energy equipmentFig.7 Number of low-pollution vehicles

Gas/fuel consumption

Use of company vehiclesElectricity consumption

Methanol vehicles

Hybrid vehicles

Natural-gas vehicles

Electric vehicles

0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

1999 1999

(1,000kWh)

0

10

20

30

40

50

60

70

80(Units)

Hybrid

Fuel cell

Wind power

Solar power

Fig.1 Consumption of virgin pulp

0

20

40

60

80

100

120

1990 1994 1995 1996 1997 1998 1999

(1,000t)

Fig.3 Ratio of virgin pulp and recycled paper in production of telephone directories

0

10

20

30

40

50

60

70

80

90

100

1994 1995 1996 1997 1998 19990

10

20

30

40

50

60

70

80

90

100

Fig.4 Collection of used telephone directories

0

20

10

30

40

50

60

70

1994 1995 1996 1997 1998 1999

Fig.2 Paper consumed in production of telephone directories

0

20

40

60

80

100

120

140

160

19951994 1996 1997 1998 1999

(1,000t)

(2) Management of paper resources


Invoices and other documentsTelegram paper

(%)Consumption of virgin pulp

Ratio of recycled paper

(1,000t)

Con

sum

ptio

n of

virg

in p

ulp

Rat

io o

f rec

ycle

d pa

per

(1,000t)


(4) Waste management

Fig.12 Volume of material recycled repellets

0

100

200

300

400

500

600

1995 1996 1997 1998 1999

(t)

0

100

200

300

400

500

600

(1,000t)

1990 19951994 1996 19981997 1999

Fig.10 Volume of waste products

Office productsCivil engineering sitesConstruction sitesCommunications facilities

Fig.14 Use of polystyrene

0

50

100

150

200

250

300

1990 1991 19931992 1994 1995 1996 1997 1998 1999

(t)

Fig.13 Collection of used communications equipment, batteries, etc.

Fig.15 Reuse of cables

0

5,000

10,000

15,000

1999

(1,000units)

0

500

1,000

1,500

2,000

1999

(km)

Fig.16 Waste from construction sites

*Volume of waste partially based on estimation.

Fig.17 Removed soil from construction sites

Fig.18 Waste from civil engineering sites

0

50

100

150

1999

Fig.19 Removed soil from civil engineering sites

0

500

1000

1999

Fig.20 Disposal of municipal wastes*Disposed volume partially estimated by sample surveys.

Fig.23 Volume of medical waste

0

1,000

2,000

3,000

4,000

5,000

1994 1995 1996 1997 1998 1999

Medical waste (non-infectious)

Medical waste (infectious)

Fig.21 Asbestos emissions

0

200

400

600

800

1999

(t)

Fig.22 Remaining asbestos (to be eliminated by end of fiscal 2000)

0

100

200

300

400

1999

�

Fig.24 Use and storage of PCBs

0

20

40

60

80

100

120

1999

0

50

100

150

200

19990

50

100

150

19990

10

20

30

1999

Chargers and other accessories

Metal cablesOptical fiber cables

Recycled amount Disposed amount

BridgesBuildings

*Volume of waste products partially estimated by sample surveys.Fig.11 Volume of emissions/recycling/ disposal of dismantled communications equipment

0

50

100

150

200

250

300

1997 1998 1999


Recycled volume

Switchboards, etc.Concrete telephone poles

Disposed volume

(1,000t)

BatteriesCellular phone/PHS units

(1,000t) (1,000t)

Recycled amount Disposed amount

(1,000t)

Recycled amountDisposed amount

(1,000t)

Recycled amountDisposed amount

(1,000t)

( t )

BridgesBuildings

(t) ( t )

(5) Protection of the ozone layer; other activities

Fig.30 ISO14001 certification for NTT Group

0

2

4

6

8

10

12(No.)

End of Dec Fiscal 1998

Jan–Mar Jan–Mar Jul–Sep Oct–DecApr–JunFiscal 1999

0

5

10

15

20

25

30

�

Fig.29 Turbo freezers/dismantled units

0

20

40

60

80

100

120

140

160

180(Units)

(Units)

Fig.32 Number of participants in Operation Clean Environment

0

20,000

40,000

60,000

80,000

100,000

120,000

1999

(persons)

Fig.31 Recycling boxes installed/volume of confidential documents

0

500

1,000

1,500

2,000

2,500

1997 1998 19990

500

1,000

1,500

2,000

2,500

3,000

3,500

Number of recycling boxesVolume of confidential documents

Fig.25 Electricity consumption

0

10

20

30

40

50

60

1994 1995 1996 1997 1998 1999

(100mil.kWh)

Fig.27 Use of specified halon for fire extinguishing equipment

1992 1993 1994 1995 1996 1997 1998 1999

Fig.28 Amount of specified CFCs for air conditioners

0

10

20

30

40

50

60

70

80

1995 1996 1997 1998 1999

Use of specified CFC (R11) for air conditioners

Storage of specified CFC (R11) for air conditioners

Number of certifications

Cumulative number of certifications

Power generatedPower purchased

Fig.26 Fuel for company vehicles

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

1999

(kr)

�

Dismantled turbo freezers

Remaining turbo freezers

0

200

400

600

800

1,000

1,200

1995 1996 1997 1998 1999

(t)

DieselGasoline

(t)

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● Published in February 2001● Published by Environmental Protection Office Nippon Telegraph and Telephone Corporation 3-1, Otemachi 2-Chome Chiyoda-Ku, Tokyo 100-8116 Japan Fax: +81-3-5205-5329 URL: http://www.ntt.co.jp/kankyo/e/index.html

Notice: Copyrights to this publication belong to the Nippon Telegraph and Telephone Corporation. This report may not be copied or otherwise used without the prior written consent of Nippon Telegraph and Telephone Corporation.

A Message from the President · NTT Leasing Co., Ltd. NTT Auto Leasing Co., Ltd. NTT FINANCE JAPAN...

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