Countries have pledged to limit global warming to 2 °C, and climate models say that is still possible. But only with heroic — and unlikely — efforts.
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Tollefson, J. Is the 2 °C world a fantasy?. Nature 527, 436–438 (2015). https://doi.org/10.1038/527436a
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DOI: https://doi.org/10.1038/527436a
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