New York Times: From the Arabian Peninsula to northern India to Californias Central Valley, nearly a third of the worlds 37 largest aquifers are being drained faster than they are being replenished, according to a recent study led by scientists at the University of California, Irvine. The aquifers are concentrated in food-producing regions that support up to two billion people. A companion study indicates that the total amount of water in the aquifers, and how long it will last at current depletion rates, is...