Researchers Talk Permafrost Carbon Feedback Models #Methanogenesis

Can we model permafrost dynamics adequately in Earth System models? Researcher present and discuss recent climate carbon cycle modelling efforts, and reply to questions.

Speakers

Dave Lawrence, National Center for Atmospheric Research (NCAR)
Charlie Koven, Lawrence Berkeley National Lab

Release via IARPC Collaborations https://www.youtube.com/watch?v=rDyGrkFYPA4

Unprecedented Arctic Warming / Sea Ice Gone too Early

Europe is so cold now that the Arctic appears to be a warm escape https://www.washingtonpost.com/news/worldviews/wp/2018/02/28/europe-is-so-cold-now-that-the-arctic-appears-to-be-a-warm-escape

Rare hurricane winds bury Greenland station in drifts
Hurricane-force winds battered NSF’s Summit Station, atop the Greenland ice sheet, over the weekend, with maximum sustained winds of 82 mph and gusts reaching 145mph https://twitter.com/NSF_OPP/status/968876728788619265

Permafrost may release largest Mercury source on Earth

There are 32 million gallons worth of mercury, or the equivalent of 50 Olympic swimming pools, trapped in the permafrost. For context, that’s “twice as much mercury as the rest of all soils, the atmosphere, and oceans combined. And it could be released. https://www.washingtonpost.com/news/energy-environment/wp/2018/02/05/the-arctic-is-full-of-toxic-mercury-and-climate-change-is-going-to-release-it Ambarchik: Research on permafrost at the Siberian arctic coast https://www.youtube.com/watch?v=ZhGcJnRgzy4 Permafrost…

Experts: Permafrost + Gas Hydrates in Arctic, Greenland SLR, Security


In this panel, Vladimir Romanovsky (University of Alaska Fairbanks), talks about thawing permafrost. Anders Levermann (PIK) 12:30 ,talks about Greenland’s contribution to sea level rise, David Titley (Ret. U.S. Navy Admiral, now Pennsylvania State University) 23:38 , talks about security, with a subsequent panel discussion 33:34 . Video via Earth Institute https://www.youtube.com/watch?v=GFe3GOCBZO8

Expert talks Arctic Permafrost Thaw (May 2017)

At the event How is climate impacting the Arctic, what does this mean & what can we do? hosted by The Woods Hole Research Center (WHRC), at the University of Alaska Fairbanks May 11, 2017. Professor of Geophysics Vladimir Romanovsky discusses the impact of Arctic permafrost thaw. Related http://permafrostwatch.org This video is an event excerpt,…

Over 200 Arctic lakes seeping methane gas

Satellite images have revealed more than 200 strange, bright blue lakes in Russia’s Arctic regions that are leaking methane gas. References Discovered: 200-plus Arctic lakes which bubble like jacuzzis from seeping methane gas http://siberiantimes.com/science/casestudy/features/discovered-200-plus-arctic-lakes-which-bubble-like-jacuzzis-from-seeping-methane-gas/ Photos Reveal More Than 200 Bright Blue Arctic Lakes Have Started Bubbling With Methane Gas http://www.sciencealert.com/photos-reveal-more-than-200-bright-blue-arctic-lakes-have-started-bubbling-with-methane-gas New explanation for Siberia’s mystery…

Arctic and Antarctic sea ice at lowest since satellites began to measure 1979

Sea Ice Extent Sinks to Record Lows at Both Poles Arctic sea ice appears to have reached on March 7 a record low wintertime maximum extent, according to scientists at NASA and the NASA-supported National Snow and Ice Data Center (NSIDC) in Boulder, Colorado. And on the opposite side of the planet, on March 3…

Methanexplosionen reissen Löcher in die sibirische Erde

Andrej Plechanow vom Zentrum für arktische Studien in Salechard berichtet, dass ungewöhnlich heiße Sommer von 2012 und 2013 die Ursache sein könnten. Permafrostboden sei aufgetaut, kollabiert und habe dabei im Untergrund eingeschlossenes Methan freigesetzt, welches dann mit Macht durch die Erdoberfläche schoss. SPIEGEL: Methanhydrate finden sich zwar üblicherweise erst ab Tiefen von mindestens 100 Metern, doch das könnte…