Articles | Volume 16, issue 5
Research article
26 Oct 2020
Research article |  | 26 Oct 2020

Global mean surface temperature and climate sensitivity of the early Eocene Climatic Optimum (EECO), Paleocene–Eocene Thermal Maximum (PETM), and latest Paleocene

Gordon N. Inglis, Fran Bragg, Natalie J. Burls, Margot J. Cramwinckel, David Evans, Gavin L. Foster, Matthew Huber, Daniel J. Lunt, Nicholas Siler, Sebastian Steinig, Jessica E. Tierney, Richard Wilkinson, Eleni Anagnostou, Agatha M. de Boer, Tom Dunkley Jones, Kirsty M. Edgar, Christopher J. Hollis, David K. Hutchinson, and Richard D. Pancost


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (16 Jun 2020) by Yannick Donnadieu
AR by Gordon Inglis on behalf of the Authors (19 Jun 2020)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (21 Jul 2020) by Yannick Donnadieu
RR by Anonymous Referee #1 (13 Aug 2020)
ED: Publish as is (02 Sep 2020) by Yannick Donnadieu
AR by Gordon Inglis on behalf of the Authors (11 Sep 2020)  Manuscript 
Short summary
This paper presents estimates of global mean surface temperatures and climate sensitivity during the early Paleogene (∼57–48 Ma). We employ a multi-method experimental approach and show that i) global mean surface temperatures range between 27 and 32°C and that ii) estimates of bulk equilibrium climate sensitivity (∼3 to 4.5°C) fall within the range predicted by the IPCC AR5 Report. This work improves our understanding of two key climate metrics during the early Paleogene.