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

An illustration of the Earth with blue and red lines swirling through the Atlantic.

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.