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Chemical clues found for methane leaks caused by fracking

Methane can seep from underground deposits into people’s well water through leaks occurring naturally or those caused by nearby hydraulic fracturing, or fracking, operations. Such leaks are a concern because methane is a greenhouse gas and because it can build up and cause explosions. Now researchers report chemical signatures indicative of methane leaks tied to fracking in the Marcellus Shale, a rich gas deposit in the Appalachian Basin.  Read more...



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