Prior to 1996 he was at McGill University, in Montreal, where he was responsible for the zoology degree and where in 1974 he established Ecological Agriculture Projects, Canada’s leading resource centre for sustainable agriculture (www.eap.mcgill.ca).
He has published over 350 papers and reports. His latest book (with Martin Mulligan) is Ecological Pioneers: A Social History of Australian Ecological Thought and Action, Cambridge UP, 2001.
In Canada he was a member of over 30 regional, national and international boards and committees. He is currently on the editorial board of four refereed journals and until 2004 represented professional environmental educators on the NSW Council on Environmental Education.
He has worked in agricultural and development projects in the West Indies, French West Africa, Indonesia, The Philippines, China, and the Seychelles, as well as in the UK, Canada, New Zealand, and Australia.
His background in chemical engineering, ecology, soil biology, entomology, agriculture, psychotherapy, education, policy development and international development, and his experience of working with change, have enabled him to be an effective facilitator in complex situations that demand both collaboration across difference and a long-term co-evolutionary approach to situation improvement.