11 Apr '11, 2pm

Study: Natural gas from #fracking is worse for climate than coal

Natural gas obtained through "fracking" -- the increasingly common process of splitting open underground deposits with high pressure chemicals -- now has an even bigger strike against it than its potential to contaminate regional water supplies . Fracking, it turns out, yields more global warming per unit of energy than coal -- at least 20 percent more, and possibly up to twice as much. Those are the bombshell findings of a new study [PDF] released by a trio of scientists at Cornell University. It turns out that after the fracking process, when the high-pressure drilling fluid is flowing back up the well, large quantities of methane gas travel with it. These and other “fugitive” emissions amount to approximately 2 percent of the natural gas released by a fracked well, which is a thousand times more than similar emissions of methane from conventional wells. Methane is an ex...

Full article: http://www.grist.org/list/2011-04-11-natural-gas-from-fra...

Tweets

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