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Shale gas could remain out of reach in the ground

This content was published on May 23, 2011 The technique for extracting this natural gas, known as hydraulic fracturing, or fracking, has come under scrutiny for causing pollution and adversely affecting water supplies. The concerns are such that one canton, Fribourg, in April suspended all authorisations to prospect for shale gas on its territory for an undetermined period. A u-turn by the government…