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Sunday, December 21, 2008

You Want Ice With That?

Shuck and Jive, always concerned that you have plenty about which to worry, saw this in today's Johnson City Press:

2 Trillion Tons of Ice Melt Since 2003

Scientists studying sea ice will announce that parts of the Arctic north of Alaska were 9 to 10 degrees warmer this past fall, a strong early indication of what researchers call the Arctic amplification effect. That’s when the Arctic warms faster than predicted, and warming there is accelerating faster than elsewhere on the globe.

As sea ice melts, the Arctic waters absorb more heat in the summer, having lost the reflective powers of vast packs of white ice. That absorbed heat is released into the air in the fall. That has led to autumn temperatures in the last several years that are six to 10 degrees warmer than they were in the 1980s, said research scientist Julienne Stroeve at the National Snow and Ice Data Center in Boulder, Colo.



That’s a strong and early impact of global warming, she said.






“The pace of change is starting to outstrip our ability to keep up with it, in terms of our understanding of it,” said Mark Serreze, senior scientist at the National Snow and Ice Data Center in Boulder, Colo., a coauthor of the Arctic amplification study.


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