Climate Central: Oil and natural gas fracking, on average, uses more than 28 times the water it did 15 years ago, gulping up to 9.6 million gallons of water per well and putting farming and drinking sources at risk in arid states, especially during drought. Those are the results of a U.S. Geological Survey study published by the American Geophysical Union, the first national-scale analysis and map of water use from hydraulic fracturing operations. USGS map of water use from hydraulic fracturing between 2011 and...