"Texas Fracking Zone Emits 90% More Methane Than EPA Estimated"

"The Barnett Shale's emissions have been vastly underestimated, sweeping Environmental Defense Fund-backed study finds."

"A sprawling, aggressive effort to measure the climate footprint of natural gas production has yielded striking results: methane emissions from the Barnett Shale in North Texas are at least 90 percent higher than government estimates.

That conclusion comes from a peer-reviewed study published Monday in Proceedings of the National Academy of Sciences. The paper is the most sweeping study to emerge from the Environmental Defense Fund's $18-million project to quantify methane leaks from the natural gas industry. It was written by 20 co-authors from 13 institutions, including universities, government labs, EDF and private research firms.

Overall, the two-year study found that methane emissions from the Barnett Shale are nearly twice as much as estimated by the Environmental Protection Agency's Greenhouse Gas Inventory, and 5.5 times the number from a separate global database."

Lisa Song reports for InsideClimate News December 7, 2015.