Key Atlantic current could collapse soon, 'impacting the entire world for centuries to come,' leading climate scientists warn

Forty-four of the world's leading climate scientists have called on Nordic policymakers to address the potentially imminent and "devastating" collapse of key Atlantic Ocean currents.

In an open letter published online Monday (Oct. 21), University of Pennsylvania climatologist Michael Mann and other eminent scientists say the risks of weakening ocean circulation in the Atlantic have been greatly underestimated and warrant urgent action.

The currents in question are those forming the Atlantic Meridional Overturning Circulation (AMOC), a giant ocean conveyor belt that includes the Gulf Stream and transports vital heat to the Northern Hemisphere. Research shows the AMOC is slowing down and could soon reach a tipping point due to global warming, throwing Earth's climate into chaos.

"Such an ocean circulation change would have devastating and irreversible impacts especially for Nordic countries, but also for other parts of the world," the scientists wrote in the letter. The Nordic countries include Denmark, Iceland, Norway, Finland and Sweden.

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