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Nature 451, 279-283 (17 January 2008) | doi:10.1038/nature06588; Published online 16 January 2008
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Scientist / Sr. Scientist - Biopharmaceutics
- Syngene International
- Bangalore, Karnataka 560099 India
Senior Computational Scientist
- Argonne National Laboratory
- Argonne, IL, United States
An early Cenozoic perspective on greenhouse warming and carbon-cycle dynamics
James C. Zachos1, Gerald R. Dickens2 & Richard E. Zeebe3
Abstract
Past episodes of greenhouse warming provide insight into the coupling of climate and the carbon cycle and thus may help to predict the consequences of unabated carbon emissions in the future.
By the year 2400, it is predicted that humans will have released about 5,000 gigatonnes of carbon (Gt C) to the atmosphere since the start of the industrial revolution if fossil-fuel emissions continue unabated and carbon-sequestration efforts remain at current levels1. This anthropogenic carbon input, predominantly carbon dioxide (CO2), would eventually return to the geosphere through the deposition of calcium carbonate and organic matter2.
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