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The facts on fracking

Hydraulic fracturing or fracking — a method of extracting natural gas from underground shale formations — has become a contentious issue across America, especially in New York, Pennsylvania, West Virginia and Ohio, states that sit on top of the Marcellus Shale, the largest known deposit of shale…  …

Watchdog group: Pro-fracking study had conflict of interest

A university study that claimed fracking for gas deep beneath the Earth’s surface did not cause water contamination was led by a US professor with financial ties to the gas industry, a watchdog group said Friday. Lead author Charles “Chip” Groat, of the University of Texas, told reporters when the…

Study finds fracking can cause earthquakes

Certain oil and gas operations that involve injecting wastewater underground can cause earthquakes, but the risk from hydraulic fracturing is generally low, said a US scientific report Friday. The report by the National Research Council found that the most significant risk of earthquakes is linked to secondary injection of wastewater…