The article says there's a "near-quadrupling of wetlands across Greenland, which are a source of methane emissions", but they don't elaborate. How significant are these emissions? How much is that offset by the carbon sequestration of the living greenery itself? Does a cover of moss help to mitigate trapped methane in the soil that bare land would otherwise release as the ice retreats? Enquiring minds want to know, and this article is light on info.