Ariane Arias-Ortiz is a tenure-track professor in the Physics Department at Universitat Autònoma de Barcelona. She is interested in carbon biogeochemical cycling, ecosystem-atmosphere interactions, and the use of radionuclides in environmental materials to study present, past, and future processes. Her work focuses on understanding the capacity of coastal ecosystems to store carbon and the carbon losses associated with the degradation of these habitats. Ariane and her team combine micrometeorological measurements with the analysis of stable and radioactive isotopes in soils and water to study carbon and energy flows between coastal ecosystems, the atmosphere, and adjacent water bodies, providing insights into how these fluxes respond to disturbance, land management, and a changing climate.