Articles | Volume 12, issue 14
https://doi.org/10.5194/bg-12-4497-2015
https://doi.org/10.5194/bg-12-4497-2015
Research article
 | 
30 Jul 2015
Research article |  | 30 Jul 2015

The mechanisms of North Atlantic CO2 uptake in a large Earth System Model ensemble

P. R. Halloran, B. B. B. Booth, C. D. Jones, F. H. Lambert, D. J. McNeall, I. J. Totterdell, and C. Völker

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Paul Halloran on behalf of the Authors (14 Apr 2015)  Author's response   Manuscript 
ED: Reconsider after major revisions (30 Apr 2015) by Leticia Cotrim da Cunha
ED: Referee Nomination & Report Request started (05 May 2015) by Leticia Cotrim da Cunha
RR by Anonymous Referee #1 (26 May 2015)
ED: Publish subject to minor revisions (Editor review) (03 Jun 2015) by Leticia Cotrim da Cunha
AR by Paul Halloran on behalf of the Authors (12 Jun 2015)  Author's response   Manuscript 
ED: Publish subject to minor revisions (Editor review) (04 Jul 2015) by Leticia Cotrim da Cunha
AR by Paul Halloran on behalf of the Authors (08 Jul 2015)  Author's response   Manuscript 
ED: Publish as is (21 Jul 2015) by Leticia Cotrim da Cunha
AR by Paul Halloran on behalf of the Authors (21 Jul 2015)
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Short summary
The oceans currently take up around a quarter of the carbon dioxide (CO2) emitted by human activity. While stored in the ocean, this CO2 is not causing global warming. Here we explore high latitude North Atlantic CO2 uptake across a set of climate model simulations, and find that the models show a peak in ocean CO2 uptake around the middle of the century after which time CO2 uptake begins to decline. We identify the causes of this long-term change and interannual variability in the models.
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