Monday, October 26, 2009 International Day of Climate Action

Saturday, October 24, 2009, was the International Day of Climate Action put together by Bill McKibben and the folks at

What's 350? It is the number that "leading scientists say is the safe upper limit for carbon dioxide—measured in "Parts Per Million" in our atmosphere. 350 PPM—it's the number humanity needs to get back to as soon as possible to avoid runaway climate change."

Check out, along with their beautiful photographs from around the world.

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