Ancient British bog provides clue to global warming

Analysis of sediments from a British bog suggest that methane emissions increased due to intense global warming around 55 million years ago.

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<p><a href="http://www.physorg.com/news109427455.html">Ancient British bog provides clue to global warming</a></p> <p>Analysis of sediments from a British bog suggest that methane emissions increased due to intense global warming around 55 million years ago.</p>