Wadhams puts this plainly. “There is no period in Earth’s history where the rate of rise of atmospheric CO2 is as great as it is today.” The asteroid that finished the dinosaurs blasted 4.5 gigatonnes of carbon into the atmosphere, “yet the CO2 rate rise [in the aftermath] was still an order of magnitude lower than the current rate”.
via J Barger
Monday, August 22, 2016
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