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Convergent Cenozoic CO2 history

Reconstructions of atmospheric carbon dioxide concentrations over the past 65 million years are heading towards consensus. It is time for systematic testing of the proxies, against measurements and against each other.

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Figure 1: Earth's Cenozoic atmospheric CO2 history by proxy.
Figure 2: Fossil materials recording Earth's past CO2 history.


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Correspondence to David J. Beerling.

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Beerling, D., Royer, D. Convergent Cenozoic CO2 history. Nature Geosci 4, 418–420 (2011).

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