Jim Hall co-leads the CCG Systems Integration Workstream. He is Professor of Climate and Environmental Risks at the University of Oxford and is Director of Research in the School of Geography and the Environment. Before joining the University of Oxford in 2011 to become Director of the University’s Environmental Change Institute, Prof. Hall held academic positions in Newcastle University and the University of Bristol. Prof. Hall is internationally recognized for his research on risk analysis and decision-making under uncertainty for water resource systems, flood and coastal risk management, infrastructure systems, and adaptation to climate change. Professor Hall is a member of the Prime Minister's Council for Science and Technology and is Expert Advisor to the National Infrastructure Commission. He is Chair of the Science Advisory Committee of the International Institute for Applied Systems Analysis (IIASA). He was a member of the UK independent Committee on Climate Change Adaptation from 2009 to 2019.