Thomas Princen explores ecological and economic sustainability at the University of Michigan. He is the author of Treading Softly: Paths to Ecological Order and The Logic of Sufficiency (both published by the MIT Press).

Michael Maniates is Professor of Political Science and Environmental Science at Allegheny College. He is the coeditor, with Thomas Princen and Ken Conca, of Confronting Consumption (MIT Press, 2002).

Ken Conca is Associate Professor of Government and Politics and Director of the Harrison Program on the Future Global Agenda at the University of Maryland.