Alternative to coal can save water

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THE ongoing transition from coal to natural gas and renewables in the U.S. electricity sector is dramatically reducing the industry’s water use, a new Duke University study finds.

“While most attention has been focused on the climate and air quality benefits of switching from coal, this new study shows that the transition to natural gas — and even more so, to renewable energy sources — has resulted in saving billions of gallons of water,” said Avner Vengosh, professor of geochemistry and water quality at Duke’s Nicholas School of the Environment.

These savings in both water consumption and water withdrawal have come despite the intensification of water use associated with fracking and shale gas production, the new study shows.

“For every megawatt of electricity produced using

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