Methane estimates from the Arctic double, but there’s no cause for alarm

From the University of Alaska, Fairbanks Study: Arctic seafloor methane releases double previous estimates The seafloor off the coast of Northern Siberia is releasing more than twice the amount of methane as previously estimated, according to new research results published in the Nov. 24 edition of the journal Nature Geoscience. The East Siberian Arctic Shelf…

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That ‘Methane Time Bomb’ now lurks behind dams

From the American Chemical Society. I wonder if they studied how much methane comes from sediment loads dropped by rivers naturally and compared them? The Mississippi Delta alone must be a terrible offender. Sediment trapped behind dams makes them ‘hot spots’ for greenhouse gas emissions With the “green” reputation of large hydroelectric dams already in…

Arctic methane emergency called off?

Here’s the issue, as described in Wikipedia: The Arctic region is one of the many natural sources of the greenhouse gas methane. Global warming accelerates its release, due to both release of methane from existing stores, and from methanogenesis in rotting biomass. Large quantities of methane are stored in the Arctic in natural gas deposits,…