Articles | Volume 24, issue 19
https://doi.org/10.5194/acp-24-11207-2024
https://doi.org/10.5194/acp-24-11207-2024
Research article
 | 
09 Oct 2024
Research article |  | 09 Oct 2024

Present-day methane shortwave absorption mutes surface warming relative to preindustrial conditions

Robert J. Allen, Xueying Zhao, Cynthia A. Randles, Ryan J. Kramer, Bjørn H. Samset, and Christopher J. Smith

Data sets

CESM2/CAM6 Idealized Methane Simulations R. Allen https://doi.org/10.5281/zenodo.10357888

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Short summary
Present-day methane shortwave absorption mutes 28% (7–55%) of the surface warming associated with its longwave absorption. The precipitation increase associated with the longwave radiative effects of the present-day methane perturbation is also muted by shortwave absorption but not significantly so.  Methane shortwave absorption also impacts the magnitude of its climate feedback parameter, largely through the cloud feedback.
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