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Climate change

Another Antarctic rhythm

Nature volume 471, pages 45–46 (2011)Cite this article

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A novel explanation for the long-term temperature record in Antarctic ice cores invokes local solar radiation as the driving agent. This proposal will prompt palaeoclimate scientists to pause and to go back to basics. See Letter p.91

Analysis of ice cores retrieved from the Antarctic and Greenland ice sheets is one of the main sources of our understanding of past climate. A component of that understanding is that, on timescales of 20,000 years and more, climate change in Antarctica is determined by the amount of solar radiation (insolation) reaching high northern latitudes in summer. On page 91 of this issue, Laepple et al.1 call into question some of the evidence for that view.

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  1. Koji Fujita is in the Graduate School of Environmental Studies, Nagoya University, Chikusa-ku, Nagoya 464-8601, Japan.,

    Koji Fujita

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  1. Koji Fujita
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Correspondence to Koji Fujita.

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Fujita, K. Another Antarctic rhythm. Nature 471, 45–46 (2011). https://doi.org/10.1038/471045a

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