Articles | Volume 19, issue 1
Biogeosciences, 19, 223–239, 2022
https://doi.org/10.5194/bg-19-223-2022
Biogeosciences, 19, 223–239, 2022
https://doi.org/10.5194/bg-19-223-2022

Research article 14 Jan 2022

Research article | 14 Jan 2022

Climate pathways behind phytoplankton-induced atmospheric warming

Rémy Asselot et al.

Model code and software

crem33/EcoGENIE_LA: Asselotetal2021_BG Andy Ridgwell, Chris Reinhard, Sebastiaan van de Velde, crem33, Markus Adloff, Jamie Wilson, Ben Ward, DomHu, Fanny Monteiro, and Pam Vervoort. https://doi.org/10.5281/zenodo.4733736

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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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