G6-1.5K-SAI and G6sulfur: changes in impacts and uncertainty depending on stratospheric aerosol  injection strategy in the Geoengineering  Model Intercomparison Project

Lee, Walker Raymond; Visioni, Daniele; Wagman, Benjamin Moore; Wentland, Christopher Robert; Kravitz, Ben; Watanabe, Shingo; Sekiya, Takashi; Jones, Andy; Haywood, Jim; Henry, Matthew; Bednarz, Ewa Monika

doi:10.5194/acp-26-7463-2026

Articles | Volume 26, issue 10

https://doi.org/10.5194/acp-26-7463-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-26-7463-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 10

Research article

|

29 May 2026

Research article |

| 29 May 2026

G6-1.5K-SAI and G6sulfur: changes in impacts and uncertainty depending on stratospheric aerosol injection strategy in the Geoengineering Model Intercomparison Project

Walker Raymond Lee, Daniele Visioni, Benjamin Moore Wagman, Christopher Robert Wentland, Ben Kravitz, Shingo Watanabe, Takashi Sekiya, Andy Jones, Jim Haywood, Matthew Henry, and Ewa Monika Bednarz

Supplement

https://doi.org/10.5194/acp-26-7463-2026-supplement

Data sets

Data for "G6-1.5K-SAI and G6sulfur: changes in impacts and uncertainty depending on stratospheric aerosol injection strategy in the Geoengineering Model Intercomparison Project" Walker Raymond Lee et al. https://doi.org/10.5281/zenodo.17613419

CMIP6 project data WCRP https://esgf-node.llnl.gov/search/cmip6/

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Short summary

Stratospheric aerosol injection (SAI) is a proposed method of cooling the planet by introducing reflective particles called aerosols into the middle atmosphere to reflect sunlight back into space. We consider recent simulations of SAI from four different climate models. SAI cools the planet effectively in all four models; we examine the impacts on temperature and precipitation in each model and compare to previous experiments. Our simulations will help inform future research and policy.