Wow. Kolbert, who writes about pretty grim stuff, writes so well that you can't help reading a long-ass piece to the end.

"As Jakobshavn’s calving front retreated, it also thinned, and the glacier’s speed—already brisk for a block of ice—increased. In 2012, its flow rate exceeded a hundred and fifty feet a day, which is believed to be a glacial world record."

https://www.newyorker.com/magazine/2024/10/14/when-the-arctic-melts
#Greenland #GreenlandIceSheet

When the Arctic Melts

Elizabeth Kolbert reports on what the fate of Greenland means for the rest of the Earth.

The New Yorker

"Jahn and Heuzé projected/estimated the first ice-free #Arctic day using output from over 300 computer simulations. They found that most models predicted that the first #IceFree day could happen within nine to 20 years after 2023 regardless of how humans alter their greenhouse gas emissions.

The earliest ice-free day in the Arctic Ocean could occur within three years, [by 2027]."

https://www.colorado.edu/today/2024/12/03/countdown-ice-free-arctic-new-research-warns-accelerated-timelines

Countdown to an ice-free Arctic: New research warns of accelerated timelines

The first summer on record that melts practically all of the Arctic’s sea ice, an ominous milestone for the planet, could occur as early as 2027.For the first

CU Boulder Today

"The research found that, at the edges of the #GreenlandIceSheet where large glaciers meet the sea, accelerations in glacier flow speed were associated with significant increases in the volume of crevasses.

Greenland contains enough ice to add 7 meters (23 feet) of #SeaLevelRise to the world's oceans if the entire ice sheet were to melt."

https://phys.org/news/2025-01-greenland-ice-sheet-rapidly-response.html

Cracks in Greenland Ice Sheet grow more rapidly in response to climate change, study warns

The Greenland Ice Sheet is cracking open more rapidly as it responds to climate change. The warning comes in a new large-scale study of crevasses on the world's second largest body of ice.

Phys.org

"Just 3.6 degrees Fahrenheit (2 degrees Celsius) of further warming could be enough to trigger a collapse of the world's second-largest ice sheet, causing sea levels to rise by 23 feet (7 meters) and sowing havoc across global ecosystems."

https://www.livescience.com/planet-earth/climate-change/scientists-identify-tipping-point-for-greenlands-ice-sheet-and-its-not-far-off
#GreenlandIceSheet

Scientists identify tipping point for Greenland's ice sheet — and it's not far off

Greenland's ice sheet has been losing a staggering amount of ice at an accelerating rate. A tipping point could come by the turn of the next century, a new study warns.

Live Science