Peak Water: What Happens When the Wells Go Dry?

earth-policy.org - by Lester R. Brown - July 9, 2013

Peak oil has generated headlines in recent years, but the real threat to our future is peak water. There are substitutes for oil, but not for water. We can produce food without oil, but not without water.

We drink on average four liters of water per day, in one form or another, but the food we eat each day requires 2,000 liters of water to produce, or 500 times as much.

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