Articles | Volume 16, issue 13
Biogeosciences, 16, 2543–2555, 2019

Special issue: The 10th International Carbon Dioxide Conference (ICDC10)...

Biogeosciences, 16, 2543–2555, 2019

Research article 02 Jul 2019

Research article | 02 Jul 2019

What was the source of the atmospheric CO2 increase during the Holocene?

Victor Brovkin et al.


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: Publish subject to minor revisions (review by editor) (16 May 2019) by Christoph Heinze
AR by Anna Wenzel on behalf of the Authors (11 Jun 2019)  Author's response
ED: Publish as is (12 Jun 2019) by Christoph Heinze
Short summary
Mechanisms of atmospheric CO2 growth by 20 ppm from 6000 BCE to the pre-industrial period are still uncertain. We apply the Earth system model MPI-ESM-LR for two transient simulations of the climate–carbon cycle. An additional process, e.g. carbonate accumulation on shelves, is required for consistency with ice-core CO2 data. Our simulations support the hypothesis that the ocean was a source of CO2 until the late Holocene when anthropogenic CO2 sources started to affect atmospheric CO2.
Final-revised paper