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Important distinctiveness of SSP3–7.0 for use in impact assessments

Recent criticisms have suggested that future emissions are unlikely to lead to the warmest climate scenario available (SSP5–8.5), which has resulted in the second highest scenario (SSP3–7.0) receiving increased attention. The distinctiveness of SSP3–7.0 has not been well recognized, but it is relevant for the proper interpretation of studies that use this scenario.

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Fig. 1: Distinctiveness of the climate change projections under SSP3–7.0.

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Acknowledgements

This comment was supported by the Advanced Studies of Climate Change Projection (SENTAN, JPMXD0722680395) of the Ministry of Education, Culture, Sports, Science and Technology of Japan, by the Environment Research and Technology Development Fund (JPMEERF23S21130 and JPMEERF23S21120) of the Environmental Restoration and Conservation Agency and the Ministry of Environment of Japan and by the Sumitomo Electric Industries Group CSR Foundation.

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H.S. conceived the paper. H.S. and M.H. conducted the analysis. All the authors provided insights and contributed to the writing of the paper.

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Correspondence to Hideo Shiogama.

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The authors declare no competing interests.

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Supplementary Methods, Tables S1 and S2, Fig. S1 and References.

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Shiogama, H., Fujimori, S., Hasegawa, T. et al. Important distinctiveness of SSP3–7.0 for use in impact assessments. Nat. Clim. Chang. 13, 1276–1278 (2023). https://doi.org/10.1038/s41558-023-01883-2

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