Wednesday, 24 April 2013

CO2 March 2013

(click to enlarge)


March 2013: 397 ppm
March 2012: 394 ppm

Annual increase: 0.7%

On target to hit 400 ppm this year? If not, next year?

Source: http://www.esrl.noaa.gov/gmd/ccgg/trends/
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