Brian Walsh is a consultant economist at the World Bank working at the intersection of climate change and sustainable resilient development. Prior to joining the World Bank, he was a Research Scholar at the International Institute for Applied Systems Analysis (IIASA) in Laxenburg, Austria, where he focused on global carbon cycles, especially land use for food security and renewable energy. Brian holds a MSc and a PhD in high energy physics from Yale University, and he was a collaborator and author on the ATLAS collaboration at CERN from 2010 through 2015.