Simulated methane emissions from Arctic ponds are highly sensitive to warming

Rehder, Zoé; Kleinen, Thomas; Kutzbach, Lars; Stepanenko, Victor; Langer, Moritz; Brovkin, Victor

doi:https://doi.org/10.5194/bg-20-2837-2023

Articles | Volume 20, issue 14

https://doi.org/10.5194/bg-20-2837-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-20-2837-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 14

Research article

|

17 Jul 2023

Research article |

| 17 Jul 2023

Simulated methane emissions from Arctic ponds are highly sensitive to warming

Zoé Rehder, Thomas Kleinen, Lars Kutzbach, Victor Stepanenko, Moritz Langer, and Victor Brovkin

Supplement

https://doi.org/10.5194/bg-20-2837-2023-supplement

Data sets

Methane Emissions from Ponds (MeEP) model in setup for the polygonal tundra in the Lena River Delta (1.0) Zoé Rehder, Thomas Kleinen, Lars Kutzbach, Victor Stepanenko, Moritz Langer, and Victor Brovkin https://doi.org/10.5281/zenodo.7912973

Supplemental Material for “Simulated methane emissions from Arctic ponds are highly sensitive to warming” Zoé Rehder, Thomas Kleinen, Lars Kutzbach, Victor Stepanenko, Moritz Langer, and Victor Brovkin https://hdl.handle.net/21.11116/0000-000D-3868-0

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Short summary

We use a new model to investigate how methane emissions from Arctic ponds change with warming. We find that emissions increase substantially. Under annual temperatures 5 °C above present temperatures, pond methane emissions are more than 3 times higher than now. Most of this increase is caused by an increase in plant productivity as plants provide the substrate microbes used to produce methane. We conclude that vegetation changes need to be included in predictions of pond methane emissions.