My volcanological research focuses on the dynamics of volcanic gas emissions, with particular interest in how magmatic systems degas from source to surface and how efficiently volatiles are transferred to the atmosphere. Using thermodynamic and geochemical modeling, this work examines how sulfur and other volatile species partition between melt, fluid, and vapor phases during ascent and eruption. Previous work has included applying these models to well-monitored systems including Whakaari/White Island and Mt. Etna (Hughes, Biasi, Fendley et al., 2023, JVGR). Understanding degassing efficiency is essential for accurately estimating volcanic volatile budgets, both for modern hazard assessment and for interpreting the environmental consequences of past eruptions. This work connects directly to broader questions about how large-volume eruptions release climate-forcing gases and why the atmospheric impact of volcanic episodes can vary so dramatically across eruption style and tectonic setting.Â