Coal mining more harmful than natural gas extraction

04/25/2011 | Gerson Lehrman Group

Open-pit coal mining and abandoned coal mines emit more methane than regulated natural gas drilling operations such as hydraulic fracturing, according to an analysis by Gerson Lehrman Group. Coal extraction emits coal-mine methane during mining activities, coal-bed methane from unmined coal seams and abandoned-mine methane from discontinued mines, the analysis states.

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Gerson Lehrman Group