APSC 151 Study Guide - Triple Bottom Line, Renewable Fuels, Exponential Growth
19 Nov 2012
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Document Summary
The art of directing the great sources of power in nature for the use and convenience of people . Earth cycles: rock cycle, hydrological cycle, carbon cycle, resource cycle, biological cycle, etc . What is the triple bottom line? economic, social, environmental. Energy use in na 40% petroleum, 23% coal, 22% coal, 8% nuclear, 7% renewable (2009). Examples: dump--->engineering landfill; mine waste disposal ---> mine waste management. Failure in engineering for the tbl . automobile fuel economy over the last 30 years. Global resources are currently adequate in most cases. Costs controlled by stock markets rather than by consumers and suppliers. Transport costs may be less than difference in labour costs between countries. Canada has a rich supply but no nation is completely self-sufficient. Canada one of largest exporters of minerals. Ore metallic minerals that can be mined at a profit. Natural aggregate crushed stone, sand, and gravel. Petroleum forms by gradual cooking of simple aquatic organisms compressed in rock.
