Dr. Trevor Hancock was the first leader of the Green Party of Canada. Under him, the party ran 60 candidates in the 1984 federal election. He is a public health physician, and consults with the World Health Organization. Together with Dr. Leonard Duhl, he created the Healthy Cities project that looks at environmental aspects of sustainable urban development as a determinant of health. In 2005, Dr. Hancock was also instrumental in initiating BC Healthy Communities- a provincial initiative focussed on building capacity for healthy municipal governance.