Peter Marcotullio is Professor of Geography at Hunter College, City University of New York (CUNY). His research interests include urban sustainable development, urban environmental transition theory, globalization and cities, urban and regional environmental planning and the relationship between urbanization and environment change. He has been affiliated with the United Nations University, the International Human Dimensions Programme and ISCU’s Scientific Committee on Problems of the Environment. Prof Marcotullio has been a Coordinating Lead Author for the Millennium Ecosystem Assessment Report, a Coordinating Lead Author for the CBD Urbanization and Biodiversity Global Assessment Report and a Contributing Author for the IPCC Fifth Assessment Report.