Dear colleagues, we would like to draw your attention to the session GMPV4.3 “What Makes Earth So Special? Global Cycles of Volatiles” that will be held at the upcoming EGU 2026 in Vienna (3-8 May 2026). The session aims to bring together scientists working on the full spectrum of volatile and elemental cycles, with a focus on their principal carriers, melts and fluids, with multi-disciplinary approaches. We encourage you to send an abstract and join us in Vienna! Best Regards, Alessia Borghini, Carla Tiraboschi, Sally Gibson ——————————————————————————————————————— Session GMPV4.3 “What Makes Earth So Special? Global Cycles of Volatiles”. Conveners: Alessia Borghini (AGH University of Krakow), Carla Tiraboschi (University of Perugia), Sally Gibson (University of Cambridge) Volatiles and other incompatible elements play a fundamental role in Earth’s dynamic systems and significantly contribute to the well-being and sustainability of life, making our planet unique. Their influence on planetary-scale processes is profound, as their global cycles efficiently transfer elements from the surface to the deep interior through subduction zones. Volatiles in melts and fluids hold the key to understanding Earth's inner workings. While major uncertainties remain, advances in multi-disciplinary approaches continue to reveal how these elements move through and shape our planet. This session brings together scientists investigating the full spectrum of volatile and elemental cycles, with a focus on their principal carriers—melts and fluids. We welcome contributions from petrology, geochemistry, and related disciplines, drawing on natural samples, experiments, and modelling. Topics of interest include: i) deep volatile cycles of H₂O, CO₂, halogens and sulfur; ii) volatile mobilization and transfer during subduction in COHNS fluids and silicate melts; iii) roles of volatiles in metamorphic and metasomatic processes; iv) physical and chemical properties of volatiles in melts and fluids; v) volatile storage in the lithospheric mantle; vi) emissions and reservoirs in volcanic systems. ———————————————————————————————————— The abstract submission deadline is 15th of January 2026 13:00 CET Submit an abstract here: https://meetingorganizer.copernicus.org/EGU26/session/57235 All information about abstract submission and deadlines: https://www.egu26.eu -- Dr. Alessia Borghini Faculty of Geology, Geophysics and Environmental Protection Department of Mineralogy, Petrography and Geochemistry AGH University of Krakow al.Mickiewicza 30, 30-059 Kraków (PL) Email: borghini@agh.edu.pl Subject Editor of Journal of the Geological Society, https://www.lyellcollection.org/journal/jgs