Climate of the Past
Climate of the Past
CP
Articles | Volume 19, issue 2
Articles | Volume 19, issue 2
https://doi.org/10.5194/cp-19-323-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-19-323-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 2
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: 18 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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