Ian Hamilton is Director of the Global Planetary Health Program and Chair in Planetary Health at Imperial College London. His research focuses on the nexus of climate change, energy and health in the built environment. Ian is Co-Investigator on the UKRI/EU funded Climate Action to Advance Healthy Societies in Europe (CATALYSE). He is a member of the UN Environment Programme Global Alliance for Buildings and Construction initiative. Ian has a extensive publication record in energy, health and climate mitigation in the built environment.