Shale gas – Dec 12
-E.P.A. Links Tainted Water in Wyoming to Hydraulic Fracturing for Natural Gas
-Shale gas drilling’s dirty secret is out
-Encana throws cold water on EPA report
-Ex-oil worker blasts shale gas industry
-No U.S.-style shale gas boom in EU: E&Y
-Petrochina says new shale gas find tough to develop


