The facts behind the frack

Scientists weigh in on the hydraulic fracturing debate

By Rachel Ehrenberg, 11:45 AM August 23, 2012

To call it a fractious debate is an understatement.

Hydraulic fracturing, or fracking, wrenches open rock deep beneath the Earth's surface, freeing the natural gas that's trapped inside. Proponents argue that fracking-related gas recovery is a game changer, a bridge to the renewable energy landscape of the future. The gas, primarily methane, is cheap and relatively clean. Because America is brimful of the stuff, harvesting the fuel via fracking could provide the country jobs and reduce its dep...

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