Washington Post: The vast northern ice sheet of Greenland melts every summer, pooling lakes of meltwater on its surface and losing fleets of icebergs from its finger-like glaciers. Thats not surprising -- its summer -- although in a warming climate, there are reasons to think these melt seasons are getting more intense, pouring more and more freshwater into the ocean.
But when a group of scientists looked back at the last summer melt season -- 2015 -- they found something odd and troubling.
Specifically,...