NASA data show that Arctic perennial sea ice, which normally survives the summer melt season and remains year-round, shrunk abruptly by 14 percent between 2004 and 2005. According to researchers, the loss of perennial ice in the East Arctic Ocean was even higher, nearing 50 percent during that time as some of the ice moved from the East Arctic to the West.
(Via Universe Today.)
Study Acquits Sun of Climate Change, Blames Humans
Researchers from Germany, Switzerland and the United States found that the sun's brightness varied by only 0.07 percent over 11-year sunspot cycles, far too little to account for the rise in temperatures since the Industrial Revolution.
"Our results imply that over the past century climate change due to human influences must far outweigh the effects of changes in the sun's brightness," said Tom Wigley of the US National Center for Atmospheric Research.
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