Abstract:A number of groups attempted to predict atmospheric CO2 concentrations between 420 to 800 ka prior to publication of the Dome C ice-core record by the European Project for Ice Coring in Antarctica, EPICA. The predictions that fared best assumed that the relationships between CO2 and proxies of air temperature remained consistent over the past 800 ky [7]. Here we extend predictions of atmospheric CO2 concentrations over the last 2 Ma under a similar assumption of consistent physical relationships between CO2 an… Show more
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