Climate of the Past
Climate of the Past
CP
Articles | Volume 22, issue 4
Articles | Volume 22, issue 4
https://doi.org/10.5194/cp-22-879-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-22-879-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 4
Research article
 | 
22 Apr 2026
Research article |  | 22 Apr 2026

Weakened Miocene temperature response to orbital forcing compared to the modern-day

Yurui Zhang, Jilin Wei, Zhen Li, Nan Dai, Weipeng Zheng, Qiuzhen Yin, Agatha M. de Boer, Zhengguo Shi, and Lixia Zhang

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Short summary
This study examines how the warm Miocene (~23–5 Ma) climate responded to orbital changes compared with modern day. Simulations show weaker Miocene temperature responses with distinct spatial patterns. High latitudes were less sensitive due to weaker albedo feedback, while tropical Africa cooled more strongly from an enhanced water cycle. The Southern Ocean warmed under low insolation as winter sea ice shrank. These findings highlight how background climate states shape orbital climate responses.
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