Articles | Volume 16, issue 13
Biogeosciences, 16, 2543–2555, 2019
https://doi.org/10.5194/bg-16-2543-2019

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

Biogeosciences, 16, 2543–2555, 2019
https://doi.org/10.5194/bg-16-2543-2019
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.

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Latest update: 28 Jun 2022
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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.
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