All this melting ice raised sea levels across the globe, just as dropping ice cubes into a whisky drink eventually makes a mess. Except some ice cubes in Greenland can be half the size of Manhattan.
There’s more: The Greenland ice sheet is so massive that it generates its own gravity. It pulls the Atlantic Ocean toward it like someone tugging a blanket. South Carolina is at the other end of this blanket, which means that Greenland pulls water away from our coast, lowering our sea level. But as the ice melts, its gravity disperses and its grip loosens. Seas at the far end of the ice’s power slosh back.
That’s one reason sea levels in South Carolina have risen faster than many other places around the globe.
Greenland is 3,000 miles north of Charleston, but this distant land of ice, polar bears and reindeer already has reshaped our coastline. It has made Charleston’s tides higher, our flooding worse. And what happens in Greenland in the future will largely determine the Lowcountry’s fate.
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