Their source: http://www.newscientist.com/article/mg20427344.800-mini-ice-age-took-hold-of-europe-in-months.html http://www.newscientist.com/article/mg20427344

Their source: http://www.newscientist.com/article/mg20427344.800-mini-ice-age-took-hold-of-europe-in-months.html http://www.newscientist.com/article/mg20427344.800-mini-ice-... Some more details in the ESF press release: "Geological evidence shows that the Big Freeze was brought about by a sudden influx of freshwater, when the glacial Lake Agassiz in North America burst its banks and poured into the North Atlantic and Arctic Oceans. This vast pulse, a greater volume than all of North America’s Great Lakes combined, diluted the North Atlantic conveyor belt and brought it to a halt." http://www.esf.org/media-centre/press-releases/ext-single-news/article/big-freeze-plunged-europe-into-ice-age-in-months-592.html http://www.esf.org/media-centre/press-releases/ext-single-ne... And the background on "Big Freeze" mini ice-age: http://en.wikipedia.org/wiki/Younger_Dryas http://en.wikipedia.org/wiki/Younger_Dryas