Globally Averaged CO2 Levels Reach 400 parts per million in 2015

ENN
Oct 25, 2016, 8:11 am55 pts
Globally averaged concentration of carbon dioxide in the atmosphere reached the symbolic and significant milestone of 400 parts per million for the first time in 2015 and surged again to new records in 2016 on the back of the very powerful El Niño event, according to the World Meteorological Organization's…

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