Some 34 million years ago, there was a rapid growth of ice on Antarctica. A modelling study indicates that the ultimate cause of this glaciation was a decrease in the concentration of atmospheric carbon dioxide. See Letter p.574
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Lunt, D. Causes and effects of Antarctic ice. Nature 511, 536–537 (2014). https://doi.org/10.1038/511536a
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DOI: https://doi.org/10.1038/511536a
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