Stephen Zavestoski is Professor of Environmental Studies at the University of San Francisco, USA. He is the co-editor, with Phil Brown, of Social Movements in Health (Blackwell, 2005), and with Phil Brown and Rachel Morello-Frosch, of Contested Illnesses: Citizens, Science, and Health Social Movements (UC Press, 2012). His research areas include environmental sociology, social movements, sociology of health and illness, and urban sustainability. Dr. Zavestoski is also co-editor of the Routledge series Equity, Justice and the Sustainable City.