Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 20
Articles | Volume 25, issue 20
https://doi.org/10.5194/acp-25-13103-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-13103-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 20
Research article
 | 
21 Oct 2025
Research article |  | 21 Oct 2025

Unequal socioeconomic exposure to drought extremes induced by stratospheric aerosol injection

Weijie Fu, Xu Yue, Chenguang Tian, Rongbin Xu, and Yuming Guo

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Latest update: 28 Aug 2026
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Short summary
Stratospheric aerosol geoengineering could cool Earth by blocking sunlight, but its impacts on extreme droughts are unclear. Our analysis of global climate simulations shows this approach might reduce extreme droughts overall. However, benefits are uneven: poorer nations face far higher drought risks compared to wealthier regions. These findings ​suggest that stratospheric aerosol geoengineering strategies may induce the risk of unintentionally worsening regional hydroclimatic disparities.
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