Ria Novosit: The amount of methane emitted by natural gas extraction, including fracking, is grossly underestimated by the Environmental Protection Agency (EPA), according to a new study published in the US-based Proceedings of the National Academy of Sciences (PNAS).
Thirteen scientists from different academic and research institutions and fields co-authored the report, which used special airborne instruments to identify large sources of methane and quantify emission rates in southwestern Pennsylvania....