Amazing news just arrived at 350.org headquarters. Rajendra Pachauri is the U.N.'s top climate scientist. He leads the Intergovernmental Panel on Climate Change (IPCC), which every five years produces the authoritative assessment of climate science. Its last report, in 2007, helped set the target of 450 parts per million (ppm) of carbon dioxide in the atmosphere, a target that many environmental groups and national governments have adopted as their goal for Copenhagen. As many of you know, that number is out of date. When Jim Hansen and other scientists looked at phenomena like the Arctic ice melt of the last …
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Bill McKibben is founder of 350.org and Schumann Distinguished Professor at Middlebury College in Vermont. He was recently honored with the Gandhi Peace Award for his work coordinating the civil disobedience actions around the Keystone XL pipeline in June 2011. He serves on Grist's Board of Directors.