Biogeosciences
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Articles | Volume 19, issue 1
Articles | Volume 19, issue 1
https://doi.org/10.5194/bg-19-223-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-223-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 1
Research article
 | 
14 Jan 2022
Research article |  | 14 Jan 2022

Climate pathways behind phytoplankton-induced atmospheric warming

Rémy Asselot, Frank Lunkeit, Philip B. Holden, and Inga Hense

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Short summary
Previous studies show that phytoplankton light absorption can warm the atmosphere, but how this warming occurs is still unknown. We compare the importance of air–sea heat versus CO2 flux in the phytoplankton-induced atmospheric warming and determine the main driver. To shed light on this research question, we conduct simulations with a climate model of intermediate complexity. We show that phytoplankton mainly warms the atmosphere by increasing the air–sea CO2 flux.
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