Labels:bulletin board | monitor | reckoner | sky | window OCR: change 50 times faster than natural average conditions Change at this rate would almost certainly force many species to attempt to move their ranges, just as they did from the ice age -interglacial transition between 10 000 and 15, 000 years ago Not only species have to respond to climatic change at rates 10to 50 times faster, but few would have undisturbed open migration routes as they at the end of the ice age and the onset of the interglacial era It is for these reasons that it is essential to understand whether doubling carbon dioxide will warm the earth by one degree or five To make the critical projections of future climatic change needed to understand the fate of ecosystems on this earth, we must dig through land, sea and ice to uncover as much of the geologic paleoclimatic and pale ...
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