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Peatlands' potential to capture carbon revised upwards as temperatures rise

Peatlands' potential to capture carbon revised upwards as temperatures rise

In Nature Climate Change, CRBE's CIRCE team and their European colleagues predict that the photosynthetic activity of microalgae in peat bogs could offset up to 14% of future CO2 emissions.

According to a predictive model developed by Vincent Jassey, a CNRS researcher in CRBE's CIRCE team, and his European colleagues, the microalgae present in peat bogs could offset up to 14% of future CO2 emissions, thanks to their photosynthetic activity. To reach this conclusion, they based their work on in situ experiments and on the various predictive scenarios established by the IPCC.

This is the first model to quantify the potential compensation of future CO2 emissions by peatlands on a global scale. This result lifts the veil on a still poorly understood part of the terrestrial carbon cycle and its alterations by anthropogenic climate change. The associated study was published in Nature Climate Change.

https://crbe.cnrs.fr/en/le-potentiel-des-tourbieres-a-capturer-du-carbone-revu-a-la-hausse-avec-laugmentation-des-temperatures/

See also

Hamard, S., Planchenault, S., Walcker, R., Sytiuk, A., Le Geay, M., Küttim, M., Dorrepaal, E., Lamentowicz, M., Petchey, O., Robroek, B., Tttila, E-S., Barret, M., Céréghino, R., Delarue, F., Ferriol, J., Lafont Rapnouil, T., Leflaive, J., Le Roux, G. & Vincent E.J. Jassey* (2025). Microbial photosynthesis mitigates carbon loss from northern peatlands under warming. Nature Climate Change, 15 : 436–443. https://doi.org/10.1038/s41558-025-02271-8

Modification date: 07 July 2025 | Publication date: 07 July 2025 | By: Tulip Communication / Vincent Jassey