Guendelman et al. (2026): The role of atmospheric fast adjustment in the distinct precipitation response between increase and decrease of CO₂ concentrations

Ilai Guendelman, Ivan Mitevski and Gabriel Vecchi, IN: npj Climate and Atmospheric Science, https://doi.org/10.1038/s41612-026-01488-4

Apparent hydrological sensitivity, the change in global-mean precipitation per degree of surface warming, is an important metric of the climate response to radiative forcing. While previous studies have suggested that hydrological sensitivity is approximately constant with increasing CO₂ concentrations, here the authors show that this behavior does not hold when comparing increases and decreases of CO₂ concentrations.

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