Is the polar bear doomed to extinction? Maybe not, according to models of the future extent of Arctic sea ice if greenhouse-gas emissions are curbed. The outlook depends on the ability of policy-makers to act. See Letter p.955
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Derocher, A. The prospects for polar bears. Nature 468, 905–906 (2010). https://doi.org/10.1038/468905a
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DOI: https://doi.org/10.1038/468905a
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