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

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

doi:https://doi.org/10.5194/esd-16-667-2025

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

Data sets

Data for journal article Change in negative emission burden between an overshoot versus peak-shaved Stratospheric Aerosol Injections pathway S. Baur https://doi.org/10.5281/zenodo.15303675

Model code and software

Code for journal article Change in negative emission burden between an overshoot versus peak-shaved Stratospheric Aerosol Injections pathway S. Baur https://doi.org/10.5281/zenodo.14753918

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.