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Carbon cycle

Global warming then and now

Nature Geoscience volume 9, pages 268269 (2016) | Download Citation

A rapid warming event 55.8 million years ago was caused by extensive carbon emissions. The rate of change of carbon and oxygen isotopes in marine shelf sediments suggests that carbon emission rates were much slower than anthropogenic emissions.

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Affiliations

  1. Peter Stassen is in the Department of Earth and Environmental Sciences of the KU Leuven, Leuven B-3000, Belgium

    • Peter Stassen

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Correspondence to Peter Stassen.

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DOI

https://doi.org/10.1038/ngeo2691

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