The subsequent studies have produced a mixed bag of results, with some showing higher methane emissions than expected, and others lower. (insideclimatenews.org)
We identified a significant regional flux of methane over a large area of shale gas wells in southwestern Pennsylvania in the Marcellus formation and further identified several pads with high methane emissions. (pnas.org)
The analysis revealed noticeably higher methane emissions from streams and rivers in watersheds marked with heavy agriculture, urban development or the presence of dams. (news.wisc.edu)