Waters off Long Island becoming "increasingly cooler"; global warming blamed

Season of the Seal | The Sag Harbor Express

“There are plenty of harbor seals,” she noted with a laugh. “More and more are coming down here.”
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Long Island is just about as far south as the harbor seal travels. Any further south and the water is too warm for their well-insulated bodies to handle. But as Arctic glaciers continue to melt and the warm Gulf Stream continues to evade the East Coast, the waters off of Long Island are becoming increasingly cooler and more habitable for seal populations.