Westerhold, T;
Marwan, N;
Drury, AJ;
Liebrand, D;
Agnini, C;
Anagnostou, E;
Barnet, JSK;
... Zachos, JC; + view all
(2020)
An astronomically dated record of Earth's climate and its predictability over the last 66 million years.
Science
, 369
(6509)
pp. 1383-1387.
10.1126/science.aba6853.
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Abstract
Much of our understanding of Earth’s past climate comes from the measurement of oxygen and carbon isotope variations in deep-sea benthic foraminifera. Yet, long intervals in existing records lack the temporal resolution and age control needed to thoroughly categorize climate states of the Cenozoic era and to study their dynamics. Here, we present a new, highly resolved, astronomically dated, continuous composite of benthic foraminifer isotope records developed in our laboratories. Four climate states—Hothouse, Warmhouse, Coolhouse, Icehouse—are identified on the basis of their distinctive response to astronomical forcing depending on greenhouse gas concentrations and polar ice sheet volume. Statistical analysis of the nonlinear behavior encoded in our record reveals the key role that polar ice volume plays in the predictability of Cenozoic climate dynamics.
| Type: | Article |
|---|---|
| Title: | An astronomically dated record of Earth's climate and its predictability over the last 66 million years |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1126/science.aba6853 |
| Publisher version: | https://doi.org/10.1126/science.aba6853 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. Funding for this research was provided by the DFG (project no. 408101468) and the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Action grant agreement (no. 796220 - MIONIÑO) to A.J.D. Published online 11/09/2020. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10110319 |
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