FootBall Reports: California sitting on 'water windfall,' researchers find
Thousands of feet beneath the surface of the state's Central Valley, one of the world's biggest agricultural hubs, there may be up to 2,700 cubic kilometers of usable groundwater - almost three times more than the amount previously thought.
For one thing, pumping groundwater in drought-afflicted areas can actually cause the land above to sink in a process called subsidence. Portions of the Central Valley have already dropped by tens of...