Arctic ice melting rapidly, study says

Arctic sea ice in winter is melting far faster than before, two new NASA studies reported Wednesday, a new and alarming trend that researchers say threatens the ocean’s delicate ecosystem.
Scientists point to the sudden and rapid melting as a sure sign of man-made global warming.

“It has never occurred before in the past,” said NASA senior research scientist Josefino Comiso in a phone interview. “It is alarming… This winter ice provides the kind of evidence that it is indeed associated with the greenhouse effect.”

yahoo