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"Fracking, or Fracing as the oil and gas industry ungrammatically spells it, is short for hydraulic fracturing, and the technology is now being used extensively to extract shale gas, by pumping liquids at high pressure into the rock, creating and"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/gas-companies-illegally-using-diesel-fuel-for-fracking.html>