Injection near the stratopause mitigates the stratospheric side effects of sulfur-based climate intervention

Yu, Pengfei; Peng, Yifeng; Rosenlof, Karen H.; Gao, Ru-Shan; Portmann, Robert W.; Ross, Martin; Ray, Eric; Bian, Jianchun; Tilmes, Simone; Toon, Owen B.

doi:10.5194/acp-25-18449-2025

Articles | Volume 25, issue 24

https://doi.org/10.5194/acp-25-18449-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-25-18449-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 24

Research article

| Highlight paper

|

18 Dec 2025

Research article | Highlight paper |

| 18 Dec 2025

Injection near the stratopause mitigates the stratospheric side effects of sulfur-based climate intervention

Pengfei Yu, Yifeng Peng, Karen H. Rosenlof, Ru-Shan Gao, Robert W. Portmann, Martin Ross, Eric Ray, Jianchun Bian, Simone Tilmes, and Owen B. Toon

Supplement

https://doi.org/10.5194/acp-25-18449-2025-supplement

Data sets

SAI50 Pengfei Yu https://doi.org/10.17605/OSF.IO/5F6HU

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Executive editor

The present work highlights advantages of a stratospheric aerosol injection (SAI) scheme for solar radiation management (SRM) as a geoengineering technology. It suggests higher altitude aerosol injection would reduce several of the side effects of SAI in the lower stratosphere. Given the substantial debate on scientific, ethical and societal aspects of SRM and SAI are a highly relevant topic.