Articles | Volume 22, issue 14
https://doi.org/10.5194/acp-22-9349-2022
https://doi.org/10.5194/acp-22-9349-2022
Research article
 | 
20 Jul 2022
Research article |  | 20 Jul 2022

Climate consequences of hydrogen emissions

Ilissa B. Ocko and Steven P. Hamburg

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Cited articles

Allen, M. R., Fuglestvedt, J. S., Shine, K. P., Reisinger, A., Pierrehumbert, R. T., and Forster, P. M.: New use of global warming potentials to compare cumulative and short-lived climate pollutants, Nat. Clim. Change, 6, 773–776, https://doi.org/10.1038/nclimate2998, 2016. 
Alvarez, R. A., Pacala, S. W., Winebrake, J. J., Chameides, W. L., and Hamburg, S. P.: Greater focus needed on methane leakage from natural gas infrastructure, P. Natl. Acad. Sci. USA, 109, 6435–6440, https://doi.org/10.1073/pnas.1202407109, 2012. 
Balcombe, P., Speirs, J., Brandon, N. P., and Hawkes, A. D.: Methane emissions: choosing the right climate metric and time, Environ. Sci.-Proc. Imp., 20, 1323, https://doi.org/10.1039/c8em00414e, 2018. 
Bartlett, J. and Krupnick, A.: Decarbonized Hydrogen in the US Power and Industrial Sectors: Identifying and Incentivizing Opportunities to Lower Emissions, Resources for the Future, 2020. 
Short summary
Hydrogen is considered a key strategy to decarbonize the global economy. However, hydrogen is also a short-lived indirect greenhouse gas that can easily leak into the atmosphere. Given that the climate impacts from hydrogen emissions are not well understood, especially in the near term, we assess impacts over all timescales for plausible emissions rates. We find that hydrogen leakage can cause more warming than widely perceived; thus, attention is needed to minimize emissions.
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