Scientists finally know what caused the Atlantic Warming Hole

For years, scientists were puzzled by a strange part of the ocean just south of Greenland that didn’t behave like the rest of the planet. While ocean temperatures across the globe have climbed steadily, this region, nicknamed the Atlantic Warming Hole, has cooled by nearly half a degree Fahrenheit over the last century. Now, researchers say they may have solved the mystery.

Despite its name, this location isn’t warm at all. It’s actually a cold zone in the North Atlantic…