Articles | Volume 19, issue 2
https://doi.org/10.5194/cp-19-323-2023
https://doi.org/10.5194/cp-19-323-2023
Research article
 | 
02 Feb 2023
Research article |  | 02 Feb 2023

Causes of the weak emergent constraint on climate sensitivity at the Last Glacial Maximum

Martin Renoult, Navjit Sagoo, Jiang Zhu, and Thorsten Mauritsen

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Latest update: 08 Oct 2025
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Short summary
The relationship between the Last Glacial Maximum and the sensitivity of climate models to a doubling of CO2 can be used to estimate the true sensitivity of the Earth. However, this relationship has varied in successive model generations. In this study, we assess multiple processes at the Last Glacial Maximum which weaken this relationship. For example, how models respond to the presence of ice sheets is a large contributor of uncertainty.
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