Earth System Dynamics
Earth System Dynamics
ESD
Articles | Volume 16, issue 3
Articles | Volume 16, issue 3
https://doi.org/10.5194/esd-16-667-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esd-16-667-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 3
Research article
 | 
05 May 2025
Research article |  | 05 May 2025

Change in negative emission burden between an overshoot versus peak-shaved stratospheric aerosol injection pathway

Susanne Baur, Benjamin M. Sanderson, Roland Séférian, and Laurent Terray

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Short summary
Stratospheric aerosol injection (SAI) could be used alongside mitigation to reduce global warming. Previous studies suggest that more atmospheric CO2 is taken up when SAI is deployed. Here, we look at the entire SAI deployment from start to after termination. We show how the initial CO2 uptake benefit, and hence lower mitigation burden, is reduced in later stages of SAI, where the reduction in natural CO2 uptake turns into an additional mitigation burden. 
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