Articles | Volume 15, issue 3
https://doi.org/10.5194/cp-15-1063-2019
https://doi.org/10.5194/cp-15-1063-2019
Research article
 | 
19 Jun 2019
Research article |  | 19 Jun 2019

Evidence for fire in the Pliocene Arctic in response to amplified temperature

Tamara L. Fletcher, Lisa Warden, Jaap S. Sinninghe Damsté, Kendrick J. Brown, Natalia Rybczynski, John C. Gosse, and Ashley P. Ballantyne

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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 (05 Nov 2018) by Alberto Reyes
AR by Tamara Fletcher on behalf of the Authors (12 Dec 2018)  Author's response 
ED: Referee Nomination & Report Request started (27 Dec 2018) by Alberto Reyes
RR by Dana Royer (04 Jan 2019)
RR by Rienk Smittenberg (13 Feb 2019)
ED: Reconsider after major revisions (25 Feb 2019) by Alberto Reyes
AR by Tamara Fletcher on behalf of the Authors (09 Apr 2019)  Author's response   Manuscript 
ED: Publish subject to minor revisions (review by editor) (29 Apr 2019) by Alberto Reyes
AR by Tamara Fletcher on behalf of the Authors (15 May 2019)  Author's response   Manuscript 
ED: Publish as is (17 May 2019) by Alberto Reyes
AR by Tamara Fletcher on behalf of the Authors (24 May 2019)  Manuscript 
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Short summary
The last time atmospheric CO2 was similar to the present was 3–4 million years ago. The Arctic was warmer compared to the global average, and the causes are not fully known. To investigate this, we reconstructed summer temperature, forest fire and vegetation at a 3.9 Ma fen peat in Arctic Canada. The summer temperatures averaged 15.4 °C, and charcoal was abundant. Interactions between vegetation and climate were mediated by fire and may contribute to high Arctic temperatures during the Pliocene.