Articles | Volume 20, issue 3
Research article
13 Mar 2024
Research article |  | 13 Mar 2024

CO2-driven and orbitally driven oxygen isotope variability in the Early Eocene

Julia Campbell, Christopher J. Poulsen, Jiang Zhu, Jessica E. Tierney, and Jeremy Keeler


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on cp-2023-37', Gordon Inglis, 11 Jul 2023
    • AC1: 'Reply on RC1', Julia Campbell, 03 Aug 2023
  • RC2: 'Comment on cp-2023-37', Anonymous Referee #2, 03 Aug 2023
    • AC2: 'Reply on RC2', Julia Campbell, 11 Aug 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Reconsider after major revisions (19 Sep 2023) by Yannick Donnadieu
AR by Julia Campbell on behalf of the Authors (30 Oct 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (16 Nov 2023) by Yannick Donnadieu
RR by Gordon Inglis (21 Dec 2023)
RR by Anonymous Referee #2 (15 Jan 2024)
ED: Publish as is (30 Jan 2024) by Yannick Donnadieu
AR by Julia Campbell on behalf of the Authors (31 Jan 2024)
Short summary
In this study, we use climate modeling to investigate the relative impact of CO2 and orbit on Early Eocene (~ 55 million years ago) climate and compare our modeled results to fossil records to determine the context for the Paleocene–Eocene Thermal Maximum, the most extreme hyperthermal in the Cenozoic. Our conclusions consider limitations and illustrate the importance of climate models when interpreting paleoclimate records in times of extreme warmth.