CO2 level passes a disturbing number - 400 ppm

Interesting graphics that addresses the disturbing trend of global warming. We have to ensure that the Obama administration is making climate change a top priority. The last time CO2 level was this high was 3 million years ago during the Pliocene epoch when the sea level was higher and earth was much much warmer. 

Read more about it here:

Time history of atmospheric carbon dioxide from 800,000 years ago until January, 2012.

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