CO2 to hit 400 parts per million next month, highest since the Pliocene
April 25, 2013 5:01 PM Subscribe
posted by Sleeper (127 comments total)
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Scripps Institute of Oceanography projects that next month its monitoring station will for the first time measure CO2 at 400 parts per million.
Atmospheric CO2 has risen from 280 parts per million before the Industrial Revolution. 400 ppm is an arbitrary milestone that we'll blow right past on our way to 450 ppm within a few decades. This is an unprecedentedly fast rate of increase and it's getting faster. Not all measuring stations are exactly the same: A NOAA station in the Arctic measured CO2 at 400 ppm last year.
Just a post to give a nod to the "DANGER" sign as we drive off a cliff.