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The Original Article was published on 21 November 2012

The Original Article was published on 13 November 2012

In the News story ‘Hunt for life under Antarctic ice heats up’ (Nature 491, 506–507; 2012), we wrongly stated that Martin Siegert was based at the University of Edinburgh. He is in fact based at the University of Bristol, UK. And the Editorial ‘America’s carbon compromise’ (Nature 491, 301; 2012) should have talked about a $20 tax per tonne of carbon dioxide not per tonne of carbon.

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The online version of the original article can be found at 10.1038/491506a

The online version of the original article can be found at 10.1038/491301a

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Corrections. Nature 491, 651 (2012).

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