BSc, Birmingham University, UK; PhD, Cambridge University. Formerly, Co-Chairman, Nanotechnology Health and Environment Implications working group, US National Nanotechnology Initiative. Chair, Environmental Health Sciences Dept. Member of the Advisory Board: Center for Environmental Impacts of Nanotechnology; NISE Net; nanotech advisory group to President's Council of Advisors on Science and Technology. Member of the Advisory Panel: National Academies of Science; Council of Canadian Academies; US EPA. Director, Risk Innovation Lab, Arizona State University School for the Future of Innovation in Society. Author. International speaker and commentator on emerging technologies.