Peter Newman is professor of city policy and director of the Institute for Sustainability and Technology Policy at Murdoch University in Perth, Australia. He recently completed a Fulbright scholarship, which he spent at the University of Virginia studying sustainability initiatives in the U.S. He is the author of Sustainability and Cities (Island Press, 1999). Isabella Jennings is a graduate student in the School of Environmental Science at Murdoch University. Her past and current research is related to the cities as sustainable ecosystems idea.