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Paris, 11 December 2013

When will the Earth lose its oceans ?

The natural increase in solar luminosity—a very slow process unrelated to current climate warming—will cause the Earth's temperatures to rise over the next few hundred million years. This will result in the complete evaporation of the oceans. Devised by a team from the Laboratoire de Météorologie Dynamique1 (CNRS / UPMC / ENS / École polytechnique), the first three-dimensional climate model able to simulate the phenomenon predicts that liquid water will disappear on Earth in approximately one billion years, extending previous estimates by several hundred million years. Published on December 12, 2013 in the journal Nature, the work not only improves our understanding of the evolution of our planet but also makes it possible to determine the necessary conditions for the presence of liquid water on other Earth-like planets.

To download the press release : Terre_Océans

Notes:

1The Laboratoire de Météorologie Dynamique is part of the Institut Pierre-Simon Laplace (IPSL). The project was granted an Ile-de-France Region post-doctoral research allowance.

Bibliography:

Increased insolation threshold for runaway greenhouse processes on Earth-like planets. Jérémy Leconte, François Forget, Benjamin Charnay, Robin Wordsworth, and Alizée Pottier. Nature. 12 December 2013. DOI: 10.1038/nature12827

Contacts:

Researchers l Jérémy Leconte l T +1 647 895 2100 l jeremy.leconte@lmd.jussieu.fr
François Forget l T +33 6 71 20 07 50 l forget@lmd.jussieu.fr
CNRS Press Office l Priscilla Dacher l T +33 1 44 96 46 06 l priscilla.dacher@cnrs-dir.fr


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