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Earth science

Baked Alaska

The warming of the Earth's climate more than 50 million years ago is as yet unexplained. Now the finger points to the heating of sediment in the Gulf of Alaska as an important source of the greenhouse gas methane.

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Figure 1: The Alaskan continental margin during the late Palaeocene epoch.

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Clift, P., Bice, K. Baked Alaska. Nature 419, 129–130 (2002). https://doi.org/10.1038/419129a

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