Did a Greenland Asteroid Cause Abrupt Warming Last Ice Age?

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…

Permafrost Melt Fires may Accelerate Greenland Melt

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…

Arctic Sea Ice Is the Thinnest and Youngest It’s Been in 60 Years

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

The 5 Big Climate Unknowns

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 Climate Change Interview…

Jet Stream Stalled over Sweden Climate Weather Connection Explained

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…

Antarctica ice loss has tripled in past decade

Mass balance of the Antarctic Ice Sheet from 1992 to 2017 – ocean-driven melting has caused rates of ice loss from West Antarctica to increase from 53 ± 29 billion to 159 ± 26 billion tonnes per year; ice-shelf collapse has increased the rate of ice loss from the Antarctic Peninsula from 7 ± 13 billion to 33 ± 16 billion tonnes per…

Huge Climate Surprises for Canada, UK, France, Spain, and Many Others

This press conference was part of the European Geosciences Union General Assembly 2018, and delved into some future climatic prospects for Canada and many European countries, including weather, hydro logical potentials, and geo-morphological activities https://client.cntv.at/egu2018/pc6

For more selected 2018 talks from EGU visit https://egu2018.eu/webstreaming.html

Teaser photo by https://unsplash.com/photos/hbz0mf6g564

ICE ALIVE – Documenting Life and Rapid Change

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…