Convergent CO2 history

Our planet’s climatic future can be estimated from an understanding of ancient climate change without recourse to computer models of Earth’s climate system — but only if we have reliable information on past concentrations of CO2 in the atmosphere. 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.

For more information visit Nature Geoscience

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