1. An astronomically dated record of Earth’s climate and its predictability over the last 66 million years
- Author
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Fabio Florindo, Paul A. Wilson, Ann Holbourn, Thomas Westerhold, Roy H Wilkens, David A. Hodell, Claudia Agnini, Eleni Anagnostou, Mitchell W Lyle, Heiko Pälike, Dick Kroon, Kate Littler, Lucas Joost Lourens, Steven M Bohaty, Anna Joy Drury, Diederik Liebrand, David De Vleeschouwer, Norbert Marwan, Vittoria Lauretano, James S K Barnet, James C Zachos, Ursula Röhl, Jun Tian, Thomas Frederichs, Stratigraphy and paleontology, Stratigraphy & paleontology, Westerhold, Thomas [0000-0001-8151-4684], Marwan, Norbert [0000-0003-1437-7039], Drury, Anna Joy [0000-0001-6206-7284], Liebrand, Diederik [0000-0002-6925-7889], Agnini, Claudia [0000-0001-9749-6003], Anagnostou, Eleni [0000-0002-7200-4794], Barnet, James SK [0000-0003-3885-5664], Bohaty, Steven M [0000-0002-1193-7398], De Vleeschouwer, David [0000-0002-3323-807X], Florindo, Fabio [0000-0002-6058-9748], Frederichs, Thomas [0000-0003-0976-0332], Hodell, David A [0000-0001-8537-1588], Holbourn, Ann E [0000-0002-3167-0862], Lauretano, Vittoria [0000-0002-7869-6074], Littler, Kate [0000-0002-4604-3634], Lourens, Lucas J [0000-0002-3815-7770], Lyle, Mitchell [0000-0002-0861-0511], Pälike, Heiko [0000-0003-3386-0923], Röhl, Ursula [0000-0001-9469-7053], Tian, Jun [0000-0002-4842-7076], Wilkens, Roy H [0000-0001-8149-3908], Zachos, James C [0000-0001-8439-1886], and Apollo - University of Cambridge Repository
- Subjects
13 Climate Action ,Multidisciplinary ,010504 meteorology & atmospheric sciences ,biology ,General Science & Technology ,Astronomical forcing ,sub-01 ,010502 geochemistry & geophysics ,biology.organism_classification ,01 natural sciences ,Foraminifera ,13. Climate action ,Isotopes of carbon ,Benthic zone ,Greenhouse gas ,Statistical analysis ,Physical geography ,Predictability ,General ,Cenozoic ,Geology ,0105 earth and related environmental sciences - 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.
- Published
- 2020
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