| http://www.w3.org/ns/prov#value | - Schlesinger, a biogeochemist and president of the Cary Institute of Ecosystem Studies in Millbrook, N.Y, has supported moratoriums in New York on hydraulic fracturing permits until its effects are completely understood.Gas drilling has expanded in Pennsylvania and other states where shale formations are thought to hold lots of natural gas, a clean-burning energy source.
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