Editor's Pick
Methane, Climate Change, and Our Uncertain Future
Methane is generally considered secondary to carbon dioxide in its importance to climate change, but what role might methane play in the future if global temperatures continue to rise?
Flooded permafrost tundra in northeast Siberia. Hydrology is a key control on methane emissions in wetland and permafrost ecosystems. Credit: Joshua Dean
The greenhouse gas, methane, is produced by both natural processes and human activities. While there has been much attention paid to curbing anthropogenic emissions, a changing climate will likely increase the production of natural methane. In an open access article recently published in Reviews of Geophysics, Dean et al. [2018] describe the ways in which biological, geochemical, and physical systems influence methane concentrations and explore how methane levels in natural systems may alter in a warming climate. Here the authors answer some questions about the sources and significance of methane, and indicate some future research directions.
Methane, Climate Change, and Our Uncertain Future by Joshua Dean, Editors' Vox, Eos, May 11, 2018
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