Sensitivity of climate effects of hydrogen to leakage size, location, and chemical background

Skeie, Ragnhild Bieltvedt; Sandstad, Marit; Krishnan, Srinath; Myhre, Gunnar; Sand, Maria

doi:https://doi.org/10.5194/acp-25-4929-2025

Articles | Volume 25, issue 9

https://doi.org/10.5194/acp-25-4929-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-25-4929-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 9

Research article

|

09 May 2025

Research article |

| 09 May 2025

Sensitivity of climate effects of hydrogen to leakage size, location, and chemical background

Ragnhild Bieltvedt Skeie, Marit Sandstad, Srinath Krishnan, Gunnar Myhre, and Maria Sand

Supplement

https://doi.org/10.5194/acp-25-4929-2025-supplement

Data sets

OsloCTM3 results for hydrogen emission perturbation sensitivity study Ragnhild Bieltvedt Skeie https://doi.org/10.11582/2025.00008

Model code and software

ciceroOslo/Hydrogen_GWP_sensitivity Ragnhild Bieltvedt Skeie et al. https://doi.org/10.5281/zenodo.14823343

ciceroOslo/OsloCTM3: v1.0.1-hydrogen-sensitivity Marit Sandstad and Stefanie Falk https://doi.org/10.5281/zenodo.15309429

Download

Article (1547 KB)
Full-text XML

Short summary

Hydrogen leakages can alter the amount of climate gases in the atmosphere and hence have a climate impact. In this study we investigate, using an atmospheric chemistry model, how this indirect climate effect differs with different amounts of leakages and with where the hydrogen leaks and if this effect changes in the future. The effect is largest for emissions far from areas where hydrogen is removed from the atmosphere by the soil, but these are not relevant locations for a future hydrogen economy.