Survey finds methane emissions from fracing half of EPA estimates

A new survey of methane emissions from hydraulic fracturing in the US found that they are 50% lower than the US Environmental Protection Agency's estimates, the American Petroleum Institute and America's Natural Gas Alliance jointly announced. They said the survey of 91,000 wells operated by more than 20 companies over a broad geographic area examined 10 times as many data sources as one of the key sources for EPA's latest emissions estimate. The survey by URS Corp. and the LEVON Group found that emissions from two significant areas were even lower than EPA's estimates, API and ANGA said. Venting of methane into the atmosphere during liquids unloading was 86% less and emissions from well ...

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