ScienceDaily: Methane is increasing in the atmosphere, but many sources are poorly understood. Lakes at high northern latitudes are such a source. However, this may change with a new study published in Nature Geoscience. By compiling previously reported measurements made at a total of 733 northern water bodies -- from small ponds formed by beavers to large lakes formed by permafrost thaw or ice-sheets -- researchers are able to more accurately estimate emissions over large scales.
"The release of methane from...