Alan ABELSOHN is a family physician in private practice in Toronto. He is also a lecturer in environmental health at Centre for Environment, University of Toronto, and in the Department of Family and Community Medicine.He is past-chair of the Ontario College of Family Physicians environmental health committee, a board member of the Canadian Association of Physicians for the Environment (CAPE) and past-co-chair of the Health Professionals Task Force, International Joint Commission (IJC). He is active as a consultant in numerous projects of environmental health at the university, with medical organizations and with NGOs, with a focus on the health aspects of air pollution, climate change, toxics and urban issues.