Observed fingerprint of a weakening Atlantic Ocean overturning circulation https://www.nature.com/articles/s41586-018-0006-5 The oceans’ circulation hasn’t been this sluggish in 1,000 years. That’s bad news. https://www.washingtonpost.com/news/energy-environment/wp/2018/04/11/the-oceans-circulation-hasnt-been-this-sluggish-in-1000-years-thats-bad-news Gulf Stream current at its weakest in 1,600 years, studies show https://www.theguardian.com/environment/2018/apr/11/critical-gulf-stream-current-weakest-for-1600-years-research-finds Shutdown of thermohaline circulation https://en.wikipedia.org/wiki/Shutdown_of_thermohaline_circulation Stronger evidence for a weaker Atlantic overturning circulation http://www.realclimate.org/index.php/archives/2018/04/stronger-evidence-for-a-weaker-atlantic-overturning-circulation North Atlantic ocean currents are…
Joseph Cook is taking a closer look at the microbial life that can be found all over the planet’s glaciers and ice sheets. It is increasingly clear that this rich ecosystem affects the melt rates of polar ice and snow and could be accelerating climate change. Narrated by Jim Al-Khalili and starring Chris Hadfield. For…
Can we model permafrost dynamics adequately in Earth System models? Researcher present and discuss recent climate carbon cycle modelling efforts, and reply to questions.
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
Jennifer Francis, Ph.D., Research Professor I, Department of Marine and Coastal Sciences, Rutgers University, speaks about extreme weather changes. And how are those related to climate change? In this presentation, Dr. Francis will explain new research that links increasing extreme weather events with the rapidly warming and melting Arctic during recent decades. Evidence suggests that…
Exciting polar bear cam b-roll USGS footage from the bear’s perspective from 2014, 2015, and 2016. The USGS Alaska Science Center Polar Bear Research Project conducts long-term research on polar bears to inform, local, state, national and international policy makers regarding conservation and management of the species and its habitat. The USGS’s studies are primarily…
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
A brief introduction to permafrost, including newer findings.
National Park Service
Climate Change in the Arctic
Teaser image International Permafrost Association https://ipa.arcticportal.org/publications/occasional-publications/what-is-permafrost
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…
CO2 emissions from fossil fuel burning caused the Arctic to warm at least twice as fast as the rest of globe, resulting in the disappearance of Arctic sea ice – which in turn weakens the polar vortex, which in turn favors cold air intrusion into lower latitudes, and vise-versa.
Bruno Tremblay from McGill University speaks about projections for future sea ice extent. This video is part of a panel presentation published by Earth Institute November 2017, with already improved sound quality (reduced humming sound).
Full panel video via Earth Institute https://www.youtube.com/watch?v=2KSYM3jV2-8
Jennifer Francis from Rutgers University speaks about our atmosphere with a scope on the Arctic response to climate change and the connection to weather. This video is part of a panel presentation published by Earth Institute November 2017, with already improved sound quality (reduced humming sound).
Video via Earth Institute https://www.youtube.com/watch?v=2KSYM3jV2-8
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
Miriam Jones speaks at the Permafrost Collaboration Team Meeting, October 10, 2017. https://www.iarpccollaborations.org/events/7798
Video via IARPC Collaborations https://www.youtube.com/watch?v=ZOyLef1t4IU
Bølling-Allerød warming https://en.wikipedia.org/wiki/B%C3%B8lling-Aller%C3%B8d_warming
This peer-reviewed educational video introduces feedbacks that are important in the Arctic climate system. It is aimed at an undergraduate non-science major level. The video was produced by a team of CIRES scientists in collaboration with CIRES Education and Outreach. Video production was funded by Professor Jennifer Kay’s CAREER Award from the National Science Foundation…
NASA 2012: The transpolar drift (purple arrows) is a dominant circulation feature in the Arctic Ocean that carries freshwater runoff (red arrows) from rivers in Russia across the North Pole and south towards Greenland. Under changing atmospheric conditions, emergent circulation patterns (blue arrows) drive freshwater runoff east towards Canada, resulting in freshening of Arctic water…