Comparison of climate records from the Pliocene and Pleistocene geological epochs of the past five million years suggests that positive climate feedbacks are not strengthened during warm climate intervals. See Article p.49
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Lea, D. Climate sensitivity in a warmer world. Nature 518, 46–47 (2015). https://doi.org/10.1038/518046b
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DOI: https://doi.org/10.1038/518046b