Co2 at 399.29ppm May 2nd, 2013

http://keelingcurve.ucsd.edu/

Latest reading: 399.29 ppm

CO2 concentration on May 2, 2013

Concentrations of the greenhouse gas carbon dioxide in the global atmosphere are approaching 400 parts per million (ppm) for the first time in human history

Last 6 Months

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