Associated Press: More data are needed to be able to fully assess whether any widespread correlation might exist between recent oil and gas development in the U.S. and degraded quality of nearby surface water, a new study by the U.S. Geological Survey suggests. The study published in the American Geophysical Union journal Water Resources Research examined water quality data from 1970-2010 in areas with recent oil and gas drilling. The authors wrote they could document no trends involving surface water pollution in...