Articles | Volume 15, issue 2
https://doi.org/10.5194/esd-15-405-2024
https://doi.org/10.5194/esd-15-405-2024
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24 Apr 2024
Research article | Highlight paper |  | 24 Apr 2024

Dependency of the impacts of geoengineering on the stratospheric sulfur injection strategy – Part 2: How changes in the hydrological cycle depend on the injection rate and model used

Anton Laakso, Daniele Visioni, Ulrike Niemeier, Simone Tilmes, and Harri Kokkola

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Latest update: 20 Nov 2024
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This is the second of two papers that study how the used model and injection strategy affect the impacts of stratospheric sulfur injections. The paper highlights the role of microphysics and of injection rate on the results of stratospheric sulfur interventions. The findings emphasize the need for precise simulation of aerosol microphysics to accurately estimate the climatic effects of stratospheric sulfur interventions.
Short summary
This study is the second in a two-part series in which we explore the dependency of the impacts of stratospheric sulfur injections on both the model employed and the strategy of injection utilized. The study uncovers  uncertainties associated with these techniques to cool climate, highlighting how the simulated climate impacts are dependent on both the selected model and the magnitude of the injections. We also show that estimating precipitation impacts of aerosol injection is a complex task.
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