Daniele Visioni is a climate modeler, and currently a Research Associate at Cornell University. He’s also currently the co-chair of the Geoengineering Model Intercomparison Project (GeoMIP). He received is PhD in Atmospheric Physics and Chemistry from the University of L’Aquila, in Italy. His main area of research is the evolution and behavior of stratospheric sulfate aerosols and their impacts on clouds, stratospheric composition and surface climate. His current work with Earth System Models aims to understand the impacts of geoengineering as a function of different possible decisions, strategies and scenarios, to inform policymakers on the potential and limitations of geoengineering. He as also worked as part of the Climate Chemistry Model Intercomparison (CCMI) project to understand the future evolution of stratospheric ozone, and to understand the climate response to explosive volcanic eruptions.