Biological particles may be crucial for inducing heavy rain, climate scientists suggest
- On May 5, 2025, EPFL researchers led by Professor Athanasios Nenes published findings showing biological particles strongly influence ice formation and precipitation at Greece’s Mount Helmos.
- The study arose because current weather and climate models overlook the daily variability and biological origin of aerosols that catalyze ice nucleation in clouds.
- The team employed a diverse array of advanced instruments—such as cloud radar systems, lidar sensors for aerosols, unmanned aerial vehicles, tethered balloon platforms, and direct sampling methods—to investigate how biological particles initiate ice crystal formation in clouds.
- Nenes highlighted the critical importance of incorporating biological particles into weather and climate models, pointing out that rising emissions of these particles could influence precipitation patterns.
- Integrating the effects of biological ice-forming particles within climate models has the potential to enhance forecasts of extreme weather, inform effective management of natural resources, and improve disaster response strategies in the context of global climate change.
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14 Articles
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Biological particles may be crucial for inducing heavy rain
Atmospheric and climate scientists show that biological particles may induce rain events that could contribute to flooding and snowstorms, owing to their ability to precipitate ice formation in clouds. They call for an update of meteorological and climate models.
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