New York Times: Drilling for shale gas through hydraulic fracturing, or fracking, appears to cause smaller leaks of the greenhouse gas methane than the federal government had estimated, and considerably smaller than some critics of shale gas had feared, according to a peer-reviewed study released on Monday.
Workers tended to a well head in a hydraulic fracturing operation at Enana Oil and Gas well near Rifle, Colo., in March.
The study, conducted by the University of Texas and sponsored by the Environmental...