ENVI 101 Lecture Notes - Lecture 2: Garrett Hardin, Natural Capital, Industrial Revolution
1 Sep 2016
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Document Summary
50 billion gallons of water are drawn from aquifers, which is more than the earth can replace. Brazil is known for its soybean production; this is done by wiping out tropical rainforests, thereby decreasing biodiversity. Grow crops where they are more common. Use vast lands for various crops as opposed to specific crops. Sustainable yield: the highest rate at which we can use a renewable resource indefinitely without reducing its available supply. Growing human population led to unsustainable lifestyles. (eg. ) coal is a nonrenewable resource because it takes a millions of years to form but takes several decades to remove. Pollution: contamination of the environment by a chemical or other agents such as noise or heat that is harmful to the health, survival, and activities of humans or other organisms. Point pollution source: carbon buildup in atmosphere. Nonpoint pollution source: trash accumulating on the street, contamination of waterways, pharmaceutical pollution- Pollution cleanup: wait for a problem to arise before acting.
