Earth’s CO2 Hits 400ppm

Some of the implications of hitting 400ppm…

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“If humanity wishes to preserve a planet similar to that on which civilization developed and to which life on Earth is adapted, paleoclimate evidence and ongoing climate change suggest that CO2 will need to be reduced from its current 385ppm to at most 350ppm,” writes NASA’s James Hansen (2008).

We’ve gone from 385 in 2008 to 400ppm in 2013. What are YOU going to do about it?

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“If humanity wishes to preserve a planet similar to that on which civilization developed and to which life on Earth is adapted, paleoclimate evidence and ongoing climate change suggest that CO2 will need to be reduced from its current 385ppm to at most 350ppm,” according NASA’s James Hansen as quoted by Bill McKibben in the LA Times Opinion section May 11, 2008. The whole article follows:

Civilization’s last chance

The planet is nearing a tipping point on climate change, and it gets much worse, fast.
By Bill McKibben
May 11, 2008
Even for Americans — who are constitutionally convinced that there will always be a second act, and a third, and a do-over after that, and, if necessary, a little public repentance and forgiveness and a Brand New Start — even for us, the world looks a little terminal right now.

It’s not just the economy: We’ve gone through…

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