In the short - term, a key issue that needs resolving is the mismatch between global methane budgets from top - down (derived from atmospheric measurements) and bottom - up (derived from measurements of methane emissions at the land surface from different methane producing environments) approaches. (eos.org)
This paper «is timely and an important step forward in understanding changes in the global methane budget,» says Isobel Simpson, an atmospheric chemist at the University of California, Irvine, who was not involved in the study. (sciencemag.org)
The new result shows that the changes in this part of the Arctic have not yet had enough impact to affect the global methane budget. (sciencedaily.com)