http://www.newscientist.com/article.ns?id=dn8398

Failing ocean current raises fears of mini ice age

Gulf Stream

“The ocean current that gives western Europe its relatively balmy climate is stuttering, raising fears that it might fail entirely and plunge the continent into a mini ice age. The dramatic finding comes from a study of ocean circulation in the North Atlantic, which found a 30% reduction in the warm currents that carry water north from the Gulf Stream.

“The last shutdown, which prompted a temperature drop of 5C to 10C in western Europe, was probably at the end of the last ice age, 12,000 years ago. There may also have been a slowing of Atlantic circulation during the Little Ice Age, which lasted sporadically from 1300 to about 1850 and created temperatures low enough to freeze the River Thames in London.”

Not good. Perhaps in the future we’ll be dreaming of a green Christmas…

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