Articles | Volume 13, issue 1
Earth Syst. Dynam., 13, 201–217, 2022
https://doi.org/10.5194/esd-13-201-2022

Special issue: Resolving uncertainties in solar geoengineering through multi-model...

Earth Syst. Dynam., 13, 201–217, 2022
https://doi.org/10.5194/esd-13-201-2022

Research article 25 Jan 2022

Research article | 25 Jan 2022

How large is the design space for stratospheric aerosol geoengineering?

Yan Zhang et al.

Data sets

Data from: How large is the design space for stratospheric aerosol geoengineering? Y. Zhang, D. G. MacMartin, D. Visioni, and B. Kravitz https://doi.org/10.7298/f1e4-sq40

Data from: Seasonally Modulated Stratospheric Aerosol Geoengineering Alters the Climate Outcomes D. Visioni, D. MacMartin, B. Kravitz, Y. Richter, S. Tilmes, and M. Mills https://doi.org/10.1029/2020GL088337

Data from: Expanding the design space of stratospheric aerosol geoengineering to include precipitation-based objectives and explore trade-offs W. Lee, D. MacMartin, D. Visioni, and B. Kravitz https://doi.org/10.7298/d2qm-1568

CESM1(WACCM) stratospheric aerosol geoengineering large ensemble (GLENS) project S. Tilmes, J. H. Richter, B. Kravitz, D. G. MacMartin, M. J. Mills, I. Simpson, A. S. Glanville, J. T. Fasullo, A. S. Phillips, J.-F. Lamarque, J. Tribbia, J. Edwards, S. Mickelson, and S. Gosh https://doi.org/10.5065/D6JH3JXX

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Short summary
Adding SO2 to the stratosphere could temporarily cool the planet by reflecting more sunlight back to space. However, adding SO2 at different latitude(s) and season(s) leads to significant differences in regional surface climate. This study shows that, to cool the planet by 1–1.5 °C, there are likely six to eight choices of injection latitude(s) and season(s) that lead to meaningfully different distributions of climate impacts.
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