From AFP:

A predicted slowdown in Atlantic Ocean currents will cause sea levels along the US north-east coast to rise twice as fast as the global average, exposing New York and other big cities to violent and frequent storm surges, according to a new study.
Manhattan’s Wall Street, barely a metre above sea level, for example, will find itself underwater more often as the 21st century unfolds, said the study, published online on Sunday in Nature Geoscience.
Sea levels vary across regions by up to 24 centimetres, influenced in part by powerful currents that course around the globe in a pattern called the thermohaline circulation.
In the Atlantic, warm water moving north along the surface from the Gulf of Mexico helps temper cold winters in western Europe and along the US east coast, while frigid Arctic waters run south along the bottom of the sea.

Oh, by the way, the headline was “Wall Street set for another big dive.”