Climate of the Past
Climate of the Past
CP
Articles | Volume 20, issue 7
Articles | Volume 20, issue 7
https://doi.org/10.5194/cp-20-1627-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-20-1627-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 7
Review article
 | 
25 Jul 2024
Review article |  | 25 Jul 2024

Climate variability, heat distribution, and polar amplification in the warm unipolar “icehouse” of the Oligocene

Dominique K. L. L. Jenny, Tammo Reichgelt, Charlotte L. O'Brien, Xiaoqing Liu, Peter K. Bijl, Matthew Huber, and Appy Sluijs

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Latest update: 24 Oct 2025
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Short summary
This study reviews the current state of knowledge regarding the Oligocene icehouse climate. We extend an existing marine climate proxy data compilation and present a new compilation and analysis of terrestrial plant assemblages to assess long-term climate trends and variability. Our data–climate model comparison reinforces the notion that models underestimate polar amplification of Oligocene climates, and we identify potential future research directions.
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