ReCLEAN, dedicated to understanding the impacts of reactive nitrogen on ecosystems amid climate change, made a significant contribution to the European Geosciences Union (EGU) General Assembly 2025 held in Vienna from April 27 to May 2. With over 20,000 attendees from 120 countries, EGU25 served as a premier platform for geoscientific discourse.

The active participation of ReCLEAN researchers at EGU25 underscores the project’s commitment to advancing our understanding of nitrogen’s role in climate and ecosystem dynamics.

Dr. Jun Zhang’s Insights on Nitrogen Deposition

Dr. Jun Zhang from the Laboratory of Atmospheric Processes and their Impacts (LAPI) at EPFL, presented findings on atmospheric reactive nitrogen and its dry deposition regimes in Switzerland. Her research, based on intensive and long-term monitoring, highlighted the shifts of nitrogen deposition regimes and provided important insights for mitigation strategies.

Find the abstract here.

Dr. Helena Vallicrosa’s Exploration of Plant-Soil-Microbe Interactions

Dr. Helena Vallicrosa, affiliated with EPFL and the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), discussed the role of plant-soil-microbe interactions on nitrogen cycling under drought and warming in grasslands. Her study emphasized the importance of understanding these interactions to model the impacts of global change accurately.

Find the abstract here.

CleanCloud’s Contribution to Aerosol pH Variations Study

In alignment with ReCLEAN’s objectives, Carolina Molina presented research on multiseasonal aerosol pH variations between boundary layer and free tropospheric airmasses in the East Mediterranean during the CleanCloud & CHOPIN Campaign. This study provided valuable insights into aerosol chemistry and its implications for air quality and climate.

Find the abstract here.