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Icy Mars lakes warmed by methane

The release of methane trapped in Martian subsurface reservoirs following planetary obliquity shifts may have contributed to episodic climate warming between 3.6 and 3 billion years ago, explaining evidence for ancient ice-covered lakes.

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Figure 1: Artist's impression of an ice-covered lake on ancient Mars.

STOCKTREK IMAGES, INC./ALAMY STOCK PHOTO

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Correspondence to Alberto G. Fairén.

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Fairén, A. Icy Mars lakes warmed by methane. Nature Geosci 10, 717–718 (2017). https://doi.org/10.1038/ngeo3037

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