This week, #NASAExplorers head back in time…by going underground. In the Arctic, a frozen layer of soil – permafrost – trapped dead plants and animals for thousands of years. As the climate warms, that soil is beginning to thaw, releasing carbon dioxide and methane. Release via https://www.youtube.com/watch?v=y7ZbghndiwQ
We report the discovery of a large impact crater beneath Hiawatha Glacier in northwest Greenland. From airborne radar surveys, we identify a 31-kilometer-wide, circular bedrock depression beneath up to a kilometer of ice http://advances.sciencemag.org/content/4/11/eaar8173 Hiawatha Glacier https://en.wikipedia.org/wiki/Hiawatha_Glacier Sources Discovering a massive meteorite crater https://www.youtube.com/watch?v=hQ9maLsIcts Massive crater under Greenland’s ice points to climate-altering impact in the…
Dr. Nikolaos Evangeliou on climate change and wildfires (Oslo, August 2018). Evangeliou works at NILU – Norwegian Institute for Air Research http://nilu.no “If larger fires would burn, they would actually have a substantial impact on melting,” Stohl said. And, there’s a greater chance of such fires, if more of Greenland’s permafrost melts and exposes peat…
The Zero Hour with RJ Eskow: Dr. Katey Walter Anthony: What’s Happening to the Permafrost? https://www.youtube.com/watch?v=fetZbsIH_yk France 24: Could thawing permafrost unleash long-gone … https://www.youtube.com/watch?v=B8pSo3_0gkk Yale Climate Connections: Permafrost: The Tipping … https://www.youtube.com/watch?v=FLCgybStZ4g Neanderthal extinction https://en.wikipedia.org/wiki/Neanderthal_extinction Sound effects by Boom Library https://www.boomlibrary.com Music by Epic Stock Media http://epicstockmedia.com Further reading Neanderthals Could Have Been Killed…
NASA GODDARD: Arctic Sea Ice Is the Thinnest and Youngest It’s Been in 60 Years https://www.youtube.com/watch?v=eFFvJYpg4xk ANDY LEE ROBINSON: Arctic Sea Ice Minimum Volumes 1979-2018 https://www.youtube.com/watch?v=GZzEUJ86PCg NASA CLIMATE CHANGE: Annual Arctic sea ice minimum 1979-2018 with area graph MMCM: Wistful https://soundcloud.com/mmcm/wistful
Part of Victoria University of Wellington’s Inaugural lecture series. Speaker: Professor Andrew Mackintosh Andrew Mackintosh https://twitter.com/amacglac
Climate unknowns include the rate of sea level rise, ozone loss, how the Gulf Stream will react and what it possibly means, the Earth’s response, and the potential for extra methane release from methane clathrates, stored at continental margins. There are many more climate unknowns, for example elaborated in this article https://thinkprogress.org/what-are-the-unknown-unknowns-of-global-warming-1438d934bdee 0:04 #1 Ozone…
This heatwave across much of the northern hemisphere could continue for weeks, and possibly even months. And accelerated warming in the Arctic compared to the rest of the planet could be a key contributor. https://www.newscientist.com/article/2174889-warming-arctic-could-be-behind-heatwave-sweeping-northern-hemisphere/ Jennifer Francis (Rutgers University), speaks March 2018 about weather changes. And how are those related to climate change? Full talk…
Glacier half the size of Manhattan breaks off Greenland https://www.cbc.ca/news/technology/greenland-glacier-calving-1.4742691 POLAR 2018 https://www.facebook.com/1667646543476558/videos/2059095260998349 The land ice contribution to sea level during the satellite era http://iopscience.iop.org/article/10.1088/1748-9326/aac2f0/meta ICE ALIVE https://www.youtube.com/watch?v=okafyLzGvcw Greenland Documentary https://www.youtube.com/watch?v=IfjoI-jliSk Drastic Arctic warm event stuns scientists, as record-breaking temperatures reach the North Pole https://mashable.com/2018/02/26/arctic-heat-wave-north-pole-february-sea-ice Zack Labe https://twitter.com/ZLabe Ocean‐induced melt triggers glacier retreat in Northwest…