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Nature 428, 303-306 (18 March 2004) | doi:10.1038/nature02408;
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Project Director, Nouabalé-Ndoki Park Project
- Wildlife Conservation Society
- Congo Republic
Professor
- University of Cincinnati and Cincinnati Children's Research Foundation
- Cincinnati, OH
A |[lsquo]|snowball Earth|[rsquo]| climate triggered by continental break-up through changes in runoff
Geological and palaeomagnetic studies indicate that ice sheets may have reached the Equator at the end of the Proterozoic eon, 800 to 550 million years ago, leading to the suggestion of a fully ice-covered |[lsquo]|snowball Earth|[rsquo]|. Climate model simulations indicate that such a snowball state for the Earth depends on anomalously low atmospheric carbon dioxide concentrations, in addition to the Sun being 6 per cent fainter than it is today.
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