9/30/134 th Bellringer: Vocab Vocab Homework Due Thursday Carrying Capacity & Ecofootprint...
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Transcript of 9/30/134 th Bellringer: Vocab Vocab Homework Due Thursday Carrying Capacity & Ecofootprint...
9/30/13 4th
Bellringer: Vocab
Vocab Homework Due Thursday
Carrying Capacity & EcofootprintDISCUSSION & NOTES
VOCAB
Pick one of these vocabulary terms and Try and explain what it means in your own words
Carrying CapacitySustainabilityEcological Footprint
Chicago CTA as an example
Early Sunday MorningThe train is well below C.C. (empty seats, lots of space)
Addison Redline Stop when the Cubs game endsThe train is above C.C. (overuse, crowding, not sustainable)
Monday Rush HourThe train is at C.C. (all resources are filled, no empty space)
Carrying Capacity
Is a function of both of the area and the individual
Area = How beneficial is the land?
Individual= How much land does the particular individual need?
Carrying Capacity Complications
1) Resources are always changing2) Human needs are always increasing
Human Resource Needs…
If you needed a pair of shoes 1,000 years ago, what was the process that the shoes were made and sent to the consumer?
Human Resource Needs…
If you need shoes today, what is the process that the shoes are made and sent to the consumer?
A measure of how much resources are needed for a person to live their current lifestyle.
What is an EcoFootprint?
Ecological Footprint
Depending on the type of country you live in, your ecological footprint will vary greatly!
Common Misconception
A bus uses more gasoline than a car. However, a person who rides the bus has a smaller ecofootprint than someone who drives a car.
Explain how this is possible.
Common Misconception II
Using the same logic…
Who has a larger ecofootprint, someone who lives in a HUGE apartment complex with 100 units or somebody who lives in a SMALL single family house?
Ecological Footprint
How much land is available per person?
There is 33 billion acres of arable land on earthThere are 7.1 billion people
How do we find acres per person?
33 billion acres / 7.1 people = 4.7 acres per person
Ecological Footprint
4.7 acres per person is available on earth
The AVERAGE person uses 5.6 acres of land to support their lifestyle.
Is this sustainable?
NO!We are using 23% MORE than what is available
Who’s at fault for the overuse?
Average person uses 5.6 acres (If it was 4.7 we would be sustainable)
Average person in INDIA = 2.2 acres
Average person in USA = 24 acres
Who uses more resources one billion Indians or 300 million Americans?
9/30/13
Bellringer: Ecofootprint Predictions
Permission Slip (5th)Pass out Vocab Homework (Due Thursday)Ecofootprint Equations
Go to #205 to start Ecofootprint Activity
Ecofootprint Predictions
Do you think your ecofootprint will be bigger or smaller than the class average?
What did you base your prediction on?
Measuring a Country’s Footprint
Ecological Demand … Resource Demand = pop. X Ecofootprint
Surplus or Deficit …Carrying Capacity – Demand = Surplus (+) or
Deficit (-)
Which countries are in a Surplus? Which country is in a Deficit?
Country Population (millions)
EcoFootprint (per person)
Demand Carrying Capacity (km2 in millions)
Land-Use Deficit or Surplus? (how much)
USA 300 .09 km2
10 km2
Australia
19 .05 km2 8 km2
Laos 140 .008 km2
3 km2
Ecological Footprint
Answer Questions 1-4. Then share those responses with your neighbor and answer question 5.
1) Approximately how far do you travel to school?2) What is your most used type of transportation?3) How many times a week do you eat animal
products?4) Do you live in a single family house, shared house
or apartment?5) Based on your answers, who uses the most
resources?
A child born in a wealthy country is likely to consume, waste, and pollute more in her/his lifetime than 50 children born in poorer nations
Resource Inequality
How Much Land Does Your Lifestyle Demand?
1. How often do you eat animal based products? (3-4 times a week)
2. How much of the food that you eat is processed, packaged and not locally grown? (3/4)
3. How many people live in your household? (2)
4. What is the size of your home? (1 bedroom, shared building)
5.Do you have electricity in your home? (YES)
5.On average, how far do you travel on public transportation each week?
(None)
5.On average, how far do you go by car each week? (25-50 miles)
6.Approximately how many hours do you spend flying each year? (20 hours)
The Results
CATEGORYCATEGORY ACRESACRES
FoodFood 4.74.7
MobilityMobility 1.01.0
ShelterShelter 10.410.4
Goods/ServicesGoods/Services 10.410.4
Total FootprintTotal Footprint 26.026.0
What Does it Mean?
This means I need 26 acres to sustain my lifestyle
(WORLDWIDE, THERE EXIST 4.7 BIOLOGICALLY PRODUCTIVE ACRES PER PERSON)
SO IF EVERYONE LIVED LIKE ME, WE WOULD NEED 5.9 PLANETS