The Atlantic Meridional Overturning Circulation is at its weakest for a millennium, according to new data

A weakened Gulf Stream would raise sea levels on the Atlantic coast of the US

North

Atlantic

Equator

Warm surface water carried north from the equator

Cold, low-salinity deep water carried south

A weakened Gulf Stream would raise sea levels on the Atlantic coast of the US

North Atlantic

Warm surface water carried north from the equator

Cold, low-salinity deep water carried south

Equator