Atm, there is a huge body of fresh water in the middle of the Arctic Ocean, mainly from all of the meltwater last year. If the same amount of ice was to melt agean this year, it would cause all of the water to move south into the Atlantic, cutting off the Gulf Stream, which is the major heat source for most of western Europe.
Such a event would throw Europe into another "mini" ice age.
06-Jun-2011 17:11:44