Building on 40 years of academic research, teaching and service, I am now dedicating my time to helping governments, businesses and communities respond to the increasing challenges of climate change, environmental risk and energy security.
Although my degrees are in nuclear science and physics, my experience is in risk assessment, sustainability and policy analysis applied to a broad range of environmental issues. The first 25 years of my career were spent in the US at Oak Ridge National Laboratories (until 1982) and then at the University of North Carolina at Chapel Hill, where I was Professor of Environmental Sciences and Engineering and Professor of Public Policy, as well as Founding Director of the Institute for the Environment. I remain Professor Emeritus there. I moved to Cambridge UK in 2007 to put my ideas into practice. At about the same time, I became Director of the University of Cambridge Centre for Climate Change Mitigation Research (4CMR) and Professor in the Department of Land Economy. I retired in 2017 and now focus on moving sustainability projects forward globally, settling in southern California (San Diego) in the US. My wife and I divide our time between San Diego and Cambridge (UK), with annual stints in Graz (Austria) as a member of the University of Graz Climate Change programme.