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Climate engineering reconsidered

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Stratospheric injection of sulphate aerosols has been advocated as an emergency geoengineering measure to tackle dangerous climate change, or as a stop-gap until atmospheric carbon dioxide levels are reduced. But it may not prove to be the game-changer that some imagine.

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Figure 1: The ecological effects of solar radiation management using sulphate aerosols.

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Acknowledgements

The Beijer Institute of Ecological Economics and the Global Economic Dynamics and the Biosphere program, both of the Royal Swedish Academy of Sciences, supported the authors' collaboration.

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Correspondence to Scott Barrett.

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Barrett, S., Lenton, T., Millner, A. et al. Climate engineering reconsidered. Nature Clim Change 4, 527–529 (2014). https://doi.org/10.1038/nclimate2278

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