Articles | Volume 18, issue 5
Biogeosciences, 18, 1689–1701, 2021
https://doi.org/10.5194/bg-18-1689-2021
Biogeosciences, 18, 1689–1701, 2021
https://doi.org/10.5194/bg-18-1689-2021

Research article 10 Mar 2021

Research article | 10 Mar 2021

Enhancement of the North Atlantic CO2 sink by Arctic Waters

Jon Olafsson et al.

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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 (13 Nov 2020) by Peter Landschützer
AR by Katja Gänger on behalf of the Authors (07 Dec 2020)  Author's response
ED: Referee Nomination & Report Request started (02 Jan 2021) by Peter Landschützer
RR by Anonymous Referee #1 (03 Jan 2021)
RR by Anonymous Referee #2 (11 Jan 2021)
ED: Publish subject to minor revisions (review by editor) (14 Jan 2021) by Peter Landschützer
AR by Jon Olafsson on behalf of the Authors (20 Jan 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (27 Jan 2021) by Peter Landschützer
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Short summary
The Atlantic north of 50° N is an intense ocean sink area for atmospheric CO2. Observations in the vicinity of Iceland reveal a previously unrecognized Arctic contribution to the North Atlantic CO2 sink. Sustained CO2 influx to waters flowing from the Arctic Ocean is linked to their excess alkalinity derived from sources in the changing Arctic. The results relate to the following question: will the North Atlantic continue to absorb CO2 in the future as it has in the past?
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