Authors:Gavin Shaddick, University of ExeterMatthew L. Thomas, University of BathAmelia Green, University of BathMichael Brauer, University of British ColumbiaAaron van Donkelaar, Dalhousie UniversityRick Burnett, Health CanadaHoward Chang, Emory UniversityAaron Cohen, Health Effects InstituteRita Van Dingenen, European CommissCarlos Dora, World Health OrganizationSophie Gumy, World Health OrganizationYang Liu, Emory UniversityRandall Martin, Dalhousie UniversityLance Waller, Emory UniversityJason West, University of North CarolinaJames V. Zidek, University of British ColumbiaAnnette Pruss-Ustun, World Health Organization