Reuters: Fracking by the U.S. oil and gas industry has increased the burden on the nation's water resources, but still accounts for less than 1 percent of America's total industrial water use, according to a paper by researchers at Duke University published on Tuesday. The controversial extraction method consumed roughly 48 billion gallons of water per year from 2012 to 2014, according to the study published in the journal Environmental Science & Technology Letters, roughly the same amount that flows over...