Monday, November 2, 2009

what is 350?



“350 is the estimated safe level of CO2 (in parts per million) for our atmosphere, a level first announced by Nasa scientist Jim Hanson in 2007 and most recently endorsed by Rajenda Pachauri, the head of the Intergovernmental Panel on Climate Change. The problem? We are already at 390, way over the 350 mark that some scientists believe is even too high.”

source: HERE

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