Roy has held leadership positions in Canada, Europe and Africa in fields including urban sustainability, national politics, international development and humanitarian affairs. He divides his professional time between roles as director of the Municipal Natural Assets Initiative and principal of Brooke & Associates. The former is an initiative to help local governments to develop resilient infrastructure alternatives at substantial savings by developing practical strategies to value nature’s ability to provide municipal services, and incorporating this information into mainstream asset management systems. The latter is a BCorp-certified consulting firm that helps organizations and communities to become more resilient and maximise their positive social and environmental impacts. Roy served as director of sustainability for the City of Victoria between 2011 and 2013. Between 2003 and 2011 he worked for the United Nations, including the World Health Organization, United Nations Environment Programme (UNEP) and UN Office for the Coordination of Humanitarian Affairs, mostly based in Geneva, Switzerland, and in 2008-09 in Kigali, Rwanda, where he was UNEP’s environment programme coordinator. Prior to this he served as a senior political advisor to a Canadian federal cabinet minister.