How much water is there on earth? (Introduction)

by David Turell , Monday, August 20, 2012, 16:10 (4479 days ago) @ xeno6696

http://ga.water.usgs.gov/edu/earthhowmuch.html
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> This accounts for water vapor (clouds) too.-And we are using it stupidly. Dams destroy the ecology of rivers; look at the studies of the Colorado below the Glen Canyon dam. At least now the releases approach the natural needs. The Ogalalla aquifer is disappearing. No one cares. When it is gone it will take 6,000 years to replace. At least we can always desalinate the oceans, and sell lots of sea salt, the latest sales gimmick.-Let's not get into the question of what do we do when the artificial lakes behind the dams silt up. We use water stupidly, especially when dictated by a government.