Environmental Science 1021F/G Lecture Notes - Lecture 16: Economic Water Scarcity, Physical Water Scarcity, James Bay Project
24 Mar 2016
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Document Summary
70% lower precipitation, evaporation is higher than the norm. You"re increasing the surface area of water, therefore more water loss. Physically changing the ow of rivers and streams. When you drain the water, aquifer collapses in on itself. Result of putting stuff on ground that end up in ground water. Result of human activity, too much water used too quickly. Distillation: boil water, it evaporates without salts, water vapour cooled and collected. Reverse osmosis: put salt water under very high pressure, push it through. Lters, salts remain behind, fresh water on other side of lter. Water is too cheap, therefore no methods used to conserve water. H2o directly over crop low pressure allows more to be used. Landscaping w/ plants that don"t need much water. Water vapour needs a nucleus to form on. By putting nuclei in atmosphere, more clouds can form, greater precip. Getting precipitation to land where you want it.
