Warmth over Greenland is highlighted in a daily analysis from mid-April. (ClimateReanalyzer.org) You might have heard about the exceptional heat this year in the northern hemisphere and around the world. March was just declared the second warmest on record globally Records have been shattered in Alaska . Scotland hit 70 degrees in February. Winter warmth has torched the U.K., Netherlands and Sweden as well — coming on the heels of Europe’s warmest year on record. But they’re not alone. Greenland is baking, too. In fact, its summer melt season has already begun — more than a month ahead of schedule. Marco Tedesco is a professor in atmospheric sciences at the Lamont Doherty Earth Observatory of Columbia University. He monitors behavior of the cryosphere — the part of earth’s water system that is frozen. He says melting of this extent shouldn’t begin until May. “The first melt event was detected […]