Climate Central: Following more than two decades of Arctic sea ice thinning and melting, an unusual event just weeks before the start of the spring melt season is providing visual proof of how vulnerable the ice pack really is.
During the end of February and continuing into early March, large fractures in the sea ice were observed off the north coast of Alaska and Canada, from near Ellesmere Island in the Canadian Arctic to Barrow, Ala., the northernmost city in the U.S.
The rapid climate change in the Arctic...