Lots of talk about the emerging worldwide water crisis. Some interesting thoughts: 90% of the world’s water is used in agriculture. To cut this number we need another green revolution. That would be a genetic revolution — but governments won’t permit it. That’s got to change if the impending water crisis is to be avoided. Energy places large demands on water supplies. It takes 2.5 liters of water to produce one liter of oil. The production of heavy oil or oil sands (the hard-to-get-stuff that the world will turn to as “easy” oil depletes) takes ten times as much water — big problem. Ethanol is a double whammy — it consumes lots of water to produce the corn, then it takes a lot of water to go from corn to ethanol. And you still get high CO2 emissions.
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