[ENVI 101] - Midterm Exam Guide - Ultimate 27 pages long Study Guide!
5 Oct 2016
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From soil erosion, climate change, air pollution, water pollution, aquifer depletion, shrinking forests, etc. 50 billion gallons a day just for agriculture. This water comes from the water cycle, but this is not sustainable because we"re pumping water thru faster than we are replenishing it. Figure of brazil- cleared rainforests for soy fields. Solutions: vertical farming, local farming, reducing human population, Human society is living unsustainably by using natural resources way too fast. Ex: coal- coal takes a very long time to form, but it takes humans very little time to extract it from the earth and use. Coal mines- to modify landscape to be used to drill this resource, it took ~20 years. If we keep using coal the way we are, we will run out between 70- Solutions are solar power, wind power, etc. Point sources: exhaust of a car, smoke stack, etc.
