Alistair Woodward is Professor of Epidemiology and Biostatistics at the University of Auckland. He is a public health medicine specialist who trained in Australia and the UK. He was the first Head of School of Population Health in Auckland, and previously was Head of the Department of Public Health at the University of Otago Wellington and Chair of Community Medicine at the University of Adelaide. His research focuses on environmental exposures in the workplace and other settings. Examples are heat, second hand tobacco smoke, radon, injury hazards, radio frequency radiation and particulate air pollution. Professor Woodward has been Lead Author and Coordinating Lead Author on IPCC assessment reports since 2001 and consults frequently for international agencies in the Pacific and Asia. Currently his research is focused on impacts of climate change and health co-benefits associated with mitigation, particularly in transport and urban planning. This includes studies of the effects of renovating neighbourhood streets, barriers to and enablers of active transport, and system change to improve health and safety on the road. He is an Associate Editor of the International Journal of Epidemiology, and on the Council of the International Society for Environmental Epidemiology.