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Climate Change is Happening Too Quickly for Species to Adapt

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Species that live on mountains, such as the snow leopard, are particularly at risk. Photograph: Tom Brakefield/Getty Images

guardian.co.uk - by Robin McKie - July 13, 2013

Among the many strange mantras repeated by climate change deniers is the claim that even in an overheated, climate-altered planet, animals and plants will still survive by adapting to global warming. . .

. . . However, their rate of change turns out to be painfully slow, according to a study by Professor John Wiens of the University of Arizona. . . The results, published online in the journal Ecology Letters, show that most land animals will not be able to evolve quickly enough to adapt to the dramatically warmer climate expected by 2100.

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Ecology Letters - Rates of projected climate change dramatically exceed past rates of climatic niche evolution among vertebrate species
http://onlinelibrary.wiley.com/doi/10.1111/ele.12144/abstract;jsessionid=6069812F3AEE8F8B0D093559CEE73BA6.d01t01

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Climate Change And Species Extinction: The New Normal Is Not The Old Normal

huffingtonpost.com - by Tom Zeller, Jr. - July 24, 2013

. . . there is ample indication in the geologic record to suggest that even major extinction events, in which substantial percentages of planetary species disappear, are nothing new.  But a good deal of evidence also suggests that one species -- humans -- might well be contributing to a major extinction event underway right before our eyes.

. . . the most worrisome driver, and the one that's proving most difficult to halt, appears to be rapid changes in average global temperatures brought on by increasing concentrations of carbon dioxide in the atmosphere -- a direct result of humanity's dependence on fossil fuels.

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The timber rattlesnake could be displaced from much of its range in the eastern U.S. by climate change projected to take place by 2100. (Credit: iStockphoto/Anthony Wilson)

submitted by Neal Lipner

CLICK HERE - RESEARCH REPORT - Pleistocene Climate, Phylogeny, and Climate Envelope Models: An Integrative Approach to Better Understand Species' Response to Climate Change

sciencedaily.com - December 6, 2011

The ranges of species will have to change dramatically as a result of climate change between now and 2100 because the climate will change more than 100 times faster than the rate at which species can adapt, according to a newly published study by Indiana University researchers.

The study, which focuses on North American rattlesnakes, finds that the rate of future change in suitable habitat will be two to three orders of magnitude greater than the average change over the past 300 millennia, a time that included three major glacial cycles and significant variation in climate and temperature.

"We find that, over the next 90 years, at best these species' ranges will change more than 100 times faster than they have during the past 320,000 years," said Michelle Lawing, lead author of the paper and a doctoral candidate in geological sciences and biology at IU Bloomington. "This rate of change is unlike anything these species have experienced, probably since their formation."

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