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"PITTSBURGH &amp;#x2013; The Environmental Protection Agency has dramatically lowered its estimate of how much of a potent heat-trapping gas leaks during natural gas production, in a shift with major im..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.observer-reporter.com/article/20130428/NEWS080101/130429270/0/SPORTS04>