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Atlantic Meridional Overturning Circulation

Extreme Climate Impacts From Collapse of a Key Atlantic Ocean Current Could be Worse Than Expected, a New Study Warns

Disruption of the Atlantic Meridional Overturning Current could freeze Europe, scorch the tropics and increase sea level rise in the North Atlantic. The tipping point may be closer than predicted in the IPCC’s latest assessment.

By Bob Berwyn

The Atlantic Meridional Overturning Circulation carries cold water from near Greenland (blue line) southward along the seafloor toward Antarctica, while currents nearer the surface transport warmer water northward. Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio

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