Articles | Volume 25, issue 19
https://doi.org/10.5194/acp-25-12007-2025
https://doi.org/10.5194/acp-25-12007-2025
Research article
 | 
02 Oct 2025
Research article |  | 02 Oct 2025

Locally emitted fungal spores serve as high-temperature ice nucleating particles in the European sub-Arctic

Jürgen Gratzl, Alexander Böhmländer, Sanna Pätsi, Clara-E. Pogner, Markus Gorfer, David Brus, Konstantinos Matthaios Doulgeris, Florian Wieland, Eija Asmi, Annika Saarto, Ottmar Möhler, Dominik Stolzenburg, and Hinrich Grothe

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Short summary
We studied particles in the air over 1 year in the Finnish sub-Arctic to understand how biological particles affect ice formation in clouds. We found that fungal spores are the main contributors to ice formation at warmer temperatures. These particles are released locally and vary with the weather. Our results also show that we know very little about which fungi can form ice in the atmosphere, highlighting a major gap in our understanding of how nature influences weather and climate.
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