Conventional wisdom and climate history Steven M. Colman* Large Lakes Observatory and Department of Geological Sciences, University of Minnesota Duluth, Duluth, MN 55812 T he Younger Dryas interval, a cold snap that chilled many parts of the world for 1,500 years or so in the midst of the last deglaciation (Ϸ13,000–11,500 years ago), is perhaps the best known and most studied paleoclimate event of the last 2 million years. Only a few years ago, it was well accepted that a change…
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