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Highest, Coldest, Permafrost is Changing Rapidly

Highest, Coldest, Permafrost is Changing Rapidly


Alex Wierbinski's picture

By Alex Wierbinski - Posted on 23 May 2019

 

ECO-CRASHING NEWS: PERMAFROST

Cluster of Retrogressive thaw Slumps
Cluster of High Longitude Retrogressive thaw Slumps, Melissa Ward Jones, McGill University.
Due to record summer temperatures in recent years, high Arctic polar terrain is changing at Ellesmere and Axel Heiberg Islands, located at approximately 80 °N! Melissa Ward Jones, McGill University.

 

Highest, Coldest, Permafrost is Changing Rapidly

Widespread Permafrost Degradation seen in High Arctic Terrain,
McGill University, May 23, 2019.

MAIN POINTS

Observing
"...close to 30 years of aerial surveys and extensive ground mapping of the Eureka Sound Lowlands area of Ellesmere and Axel Heiberg Islands located at approximately 80 °N."

Retrogressive Thaw Slump
"...a particular landform (known as a retrogressive thaw slump) that develops as the ice within the permafrost melts and the land slips down in a horseshoe-shaped feature. The presence of these landforms is well documented in the low Arctic."

Expectation
"...due to the extremely cold climate in high Arctic polar deserts...and the fact that the permafrost is over 500 metres (or about 1/3 of a mile) thick, it had been assumed this landscape was stable."

NOPE
"Our study suggests that the warming climate in the high Arctic, and more specifically the increases in summer air temperatures that we have seen in recent years, are initiating widespread changes in the landscape..."

Reality
"There has been a widespread development of retrogressive thaw slumps in high Arctic polar deserts over a short period, particularly during the unusually warm summers of 2011, 2012 and 2015."

Big Trouble Far Up North
"Despite the cold polar desert conditions that characterize much of the high Arctic, this research clearly demonstrates the complex nature of ice-rich permafrost systems and climate-permafrost interaction."

 

 

Bottom Line

Yeah. It's going away. Rapidly.

 

 

We are Watching the End of Permafrost

Recent Permafrost Research

May 2019
Abrupt Permafrost Thaw Underway Right Now

 

April 2019
ECO-CRASHING NEWS: Comprehensive Arctic Warming Underway

 

April 2019
Massive Unexpected Emissions from Melting Permafrost

 

JAN 2019
PERMAFROST DISASTER GROWING ALMOST EVEYWHERE

 

JAN 2019
Eco Crash News: Furthest Northern Arctic Permafrost to Melt

 

SEPT 2018
END OF COLD: Say Goodbye to Permafrost

 

AUG 2018
2018: Permafrost Melt Lakes Surges Arctic Methane Release

 

 

 

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