1. Institute for Environmental Design and Engineering, University College London, London, UK
2. Department of Public Health, Policy and Systems, University of Liverpool, London, UK
3. Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
4. Department of Environment, Climate Change and Health, World Health Organization, Geneva, Switzerland
5. Department of Urban Design and Planning, University of Washington, Seattle, WA, USA