ReadingSatellites show the north Atlantic releasing 18% less heat than 40 years ago.
The current keeps Europe mild, and some research suggests it could collapse as soon as 2060.
University of Reading researchers combined satellite energy-balance data with reanalyses to infer the heat released, in a study still under peer review.
Stefan Rahmstorf of Potsdam says heat flux is not necessarily a better gauge than sea-surface temperature.
Britain is spending £81 million on an early-warning system for the Atlantic current’s collapse due by 2030.
How each outlet framed it
- New Scientist
- uses satellite heat-flux data to infer the AMOC slowdown, citing an 18% drop in 40 years
Sources: New Scientist