Natural gas flares off a well on a farm outside the northeastern Pennsylvania town of Leroy.
Natural gas flares off a well on a farm outside the northeastern Pennsylvania town of Leroy. Kevin G. Hall/MCT
Natural gas flares off a well on a farm outside the northeastern Pennsylvania town of Leroy. Kevin G. Hall/MCT

National

December 21, 2011 5:13 PM

As shale fracking booms, environmental protection lags

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