Articles | Volume 16, issue 4
https://doi.org/10.5194/cp-16-1599-2020
https://doi.org/10.5194/cp-16-1599-2020
Research article
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27 Aug 2020
Research article | Highlight paper |  | 27 Aug 2020

Lessons from a high-CO2 world: an ocean view from  ∼ 3 million years ago

Erin L. McClymont, Heather L. Ford, Sze Ling Ho, Julia C. Tindall, Alan M. Haywood, Montserrat Alonso-Garcia, Ian Bailey, Melissa A. Berke, Kate Littler, Molly O. Patterson, Benjamin Petrick, Francien Peterse, A. Christina Ravelo, Bjørg Risebrobakken, Stijn De Schepper, George E. A. Swann, Kaustubh Thirumalai, Jessica E. Tierney, Carolien van der Weijst, Sarah White, Ayako Abe-Ouchi, Michiel L. J. Baatsen, Esther C. Brady, Wing-Le Chan, Deepak Chandan, Ran Feng, Chuncheng Guo, Anna S. von der Heydt, Stephen Hunter, Xiangyi Li, Gerrit Lohmann, Kerim H. Nisancioglu, Bette L. Otto-Bliesner, W. Richard Peltier, Christian Stepanek, and Zhongshi Zhang

Data sets

Sea surface temperature anomalies for Pliocene interglacial KM5c (PlioVAR) E. L. McClymont, H. L. Ford, S. L. Ho, M. Alonso-Garcia, I. Bailey, M. A. Berke, K. Littler, M. O. Patterson, B. F. Petrick, F. Peterse, A. C. Ravelo, B. Risebrobakken, S. De Schepper, G. E. A. Swann, K. Thirumalai, J. E. Tierney, C. van der Weijst, and S. White https://doi.org/10.1594/PANGAEA.911847

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Short summary
We examine the sea-surface temperature response to an interval of climate ~ 3.2 million years ago, when CO2 concentrations were similar to today and the near future. Our geological data and climate models show that global mean sea-surface temperatures were 2.3 to 3.2 ºC warmer than pre-industrial climate, that the mid-latitudes and high latitudes warmed more than the tropics, and that the warming was particularly enhanced in the North Atlantic Ocean.