The Atlantic is at risk of circulation collapse – it would mean even greater climate chaos across Europe

By Robert Marsh, Professor of Oceanography and Climate, University of Southampton

Amid news of lethal heatwaves across the Northern Hemisphere comes the daunting prospect of a climate disaster on an altogether grander scale. New findings published in Nature Communications suggest the Atlantic meridional overturning circulation, or Amoc, could collapse within the next few decades – maybe even within the next few years – driving European weather to even greater extremes.

The Amoc amounts to a system of currents in the Atlantic that bring warm water northwards where it then cools and sinks.…

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