Zero waste carbon neutral ppt sept 14 2010
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Transcript of Zero waste carbon neutral ppt sept 14 2010
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Zero Waste Sector
Seattle Carbon NeutralSeptember 14, 2010
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2006
6 days/week
2010
6 days/week
20301 day/week
www.seattlepi.com/local/323082_trashtrain10.html
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How• Many small actions will add up• Shift to “cradle to cradle” – production,
transport, and reuse/recycling• 3 over-arching concepts:
– recycling/composting, – reduction at source, – producer responsibility
• Wastewater
http://www.seattlepi.com/local/323082_trashtrain10.html
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Seattle Recycling/ Composting
1980’s goal60%
2006 actual43%2009 gain51%
Zero wastegoal
>>80%
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Aluminum
Newspaper
Mixed Paper
Wood
Cardboard
Sound Resource Management. 2009. Environmental Life Cycle Assessment of Waste Management Strategies with a Zero Waste Objective
Greenhouse gas emissions per ton(recycle versus use of virgin materials)
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Methane Emissions• Landfills are 2nd largest source of anthropogenic methane gas in US
• 23 percent of all methane emissions in 2007
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~50% of garbage in 2009 was recyclable or compostable
• Food waste/food-soiled paper110,000 tons
• Recyclable paper38,000 tons
• Cans, bottles and other common recyclables
34,000 tons
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Many recyclables sent overseasOverseas:82% newspaper100% mixed paper70% cardboard100% HDPE100% PETDomestic:100% mixed glass100% aluminum cans100% steel/tin cans
www.seattle.gov/util/About_SPU/Recycling_System/History_&_Overview/index.asp
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Beef-up “Reduce”
Reduce the amount of waste sent to the landfill
2006 = 438,000 tons2009 = 352,000 tons
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Phonebooks
http://slog.thestranger.com/slog/archives/2010/07/13/my-just-in-time-contribution-to-councilman-mike-obriens-phone-book-collection
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Paperless Billing (and City!)
http://greenpages.indoff.com/Weblog/Archive/2009/2/6/12_Tips_to_Reduce_Paper_Consumption_in_the_Office
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Excess Food
The average family wastes $600 worth of food each year. Can we change?
August 17, 2010 (www.bundle.com/everybodysmoney)
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Producer recovery fee for excess packaging
http://www.nytimes.com/2010/09/08/technology/08packaging.html?_r=1
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WA State Residential Waste Stream
July 2010: 2009 Washington Statewide Waste Characterization Study
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Producer ResponsibilityCarpet
ecolocalizer.com/2008/02/29/san-Francisco-carpet-recycling
Tires
http://library.thinkquest.org/07aug/02051/Tires.htm
Mattresses
http://www.rhondda-cynon-taf.gov.uk/stellent/groups/public/documents/hcst/content.hcst?lang=en&&dDocName=033661
Used Painthttp://www.sustainablebusinessoregon.com/articles/2010/07/oregon_paint_recycling_program_leads_the_nation.html
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WastewaterGreywater
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Reclaimed Water
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In Sum
• 100% recycling• Beef up “reduce”• Producer responsibility• Reuse wastewater
www.uoregon.edu/~recycle/edu_promo.htm
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Thank you
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