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Climate of the Past An interactive open-access journal of the European Geosciences Union
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Volume 11, issue 12
Clim. Past, 11, 1801–1823, 2015
https://doi.org/10.5194/cp-11-1801-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Clim. Past, 11, 1801–1823, 2015
https://doi.org/10.5194/cp-11-1801-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 21 Dec 2015

Research article | 21 Dec 2015

On the state dependency of the equilibrium climate sensitivity during the last 5 million years

P. Köhler et al.

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Short summary
We find that the specific equilibrium climate sensitivity due to radiative forcing of CO2 and land ice albedo has been state-dependent for the last 2.1Myr (most of the Pleistocene). Its value is ~45% larger during intermediate glaciated climates and interglacial periods than during Pleistocene full glacial conditions. The state dependency is mainly caused by a latitudinal dependency in ice sheet area changes. Due to uncertainties in CO2, firm conclusions for the Pliocene are not yet possible.
We find that the specific equilibrium climate sensitivity due to radiative forcing of CO2 and...
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