Prof. Stefan Rahmstorf
Important new study shows that current climate models underestimate the human-caused slowing of the #AMOC (Atlantic overturning), because they neglect freshwater influx from Greenland melt and other sources.
https://www.nature.com/articles/s41561-024-01568-1
Weakening of the Atlantic Meridional Overturning Circulation driven by subarctic freshening since the mid-twentieth century - Nature Geoscience

Fresh meltwater entering the Labrador and Irminger seas has resulted in a slowing of the Atlantic Meridional Overturning Circulation since the 1950s, according to a combination of modelling approaches.

Nature
Nov 19, 2024 at 3:05pmWeb
Show threadStephen Dioxide Nov 19, 2024
@rahmstorf If I've understood correctly (which is optimistic), Europe and North Africa would become a lot colder, even as the planet as a whole becomes a lot warmer. This would entail the collapse of large-scale ecosystems and the extinction of many species. I'm also guessing a lot of fresh water will become locked up in snow and ice. But, hey, there won't be as many hurricanes in the Atlantic.
Show threadPhil Stevens Nov 20, 2024
@rahmstorf That's quite the oversight. I remember distinctly back in the early 2000s looking at models that were showing what a sustained and anomalous pulse of meltwater pushing out from Baffin Bay would do as it spread out across the N Atlantic. The scenario was scary enough back then. Now it's terrifying.