Sudden Climate Change Proven, Says Scientist
It has been discovered that a dramatic rise in temperature hit Antarctica about 19,000 years ago, followed by an equally sudden decline. Like similar data from Greenland ice cores, this suggests that global climate change may not happen gradually, but that extreme changes can come about very quickly, even without the present human contribution to global warming.
James White, a professor at the University of Colorado, and his colleagues analyzed deep-ice cores drilled in Antarctica over the past 2 years. This finding “gives us a road map to the way big climate changes occur,” he said.
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