Lecture 6

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Published on 8 Oct 2011
School
UTSC
Department
Geography
Course
GGRA03H3
Lecture #6 (first lecture after midterm---June 10 th
, 2009
-Missisauga- Light Rail Transit- reduce carbon footprint improving transit in
Brampton
-$50 billion to upgrade Toronto Transit
Why study waste?
- forestry: 25% of waste paper
- mining- iron, aluminum
- packaging: 1/3 of all waste is packaging
Habitat: land
Water: quality of it, leech ate
Why study waste?
- air quality: incineration, dioxins, land fill gas is 50% methane gas…
methane is a greenhouse gas
21st century: more waste, more plastics, vs. 50 years ago little plastic
1) more waste per capita
2) changing composition of garbage
-ecological footprint: how much land needed to live the way we do (to
produce resources and assimilate wastes)
Pg.144: can use ecological footprint to see how we individuals impact the
world
In developing countries, ecological footprint growing fast (ex. China), more
income, more meat, more resources
TO REDUCE ECOLOGICAL FOOTPRINT, MUST REDUCE
WASTES!
- In North America, 4.5 hectares/land need to produce resources and
assimilate waste we create
-need 26 billion ha to live like Americans, but only have 8.8 billion on Earth
- need 2 Earths
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Document Summary

Lecture #6 (first lecture after midterm---june 10 th , 2009. Missisauga- light rail transit- reduce carbon footprint improving transit in. Packaging: 1/3 of all waste is packaging. Air quality: incineration, dioxins, land fill gas is 50% methane gas methane is a greenhouse gas. 21st century: more waste, more plastics, vs. 50 years ago little plastic: more waste per capita, changing composition of garbage. Ecological footprint: how much land needed to live the way we do (to produce resources and assimilate wastes) Pg. 144: can use ecological footprint to see how we individuals impact the world. In developing countries, ecological footprint growing fast (ex. In north america, 4. 5 hectares/land need to produce resources and assimilate waste we create. Need 26 billion ha to live like americans, but only have 8. 8 billion on earth. West needs to reduce ecological footprint for developing world to enjoy a better lifestyle. As developing starts to consume resources: more ecological instability and ethnic cleansing.