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Uncertainties in the modelled CO2 threshold for Antarctic glaciation
2014
Climate of the Past
<p><strong>Abstract.</strong> A frequently cited atmospheric CO<sub>2</sub> threshold for the onset of Antarctic glaciation of ~780 ppmv is based on the study of DeConto and Pollard (2003) using an ice sheet model and the GENESIS climate model. Proxy records suggest that atmospheric CO<sub>2</sub> concentrations passed through this threshold across the Eocene–Oligocene transition ~34 Ma. However, atmospheric CO<sub>2</sub> concentrations may have been close to this threshold earlier than this
doi:10.5194/cp-10-451-2014
fatcat:au3g7u242nfthjxgndyty4cuiy