Sous la direction d'Erik Assadourian :
Mona Amodeo, Robin Andersen, Ray Anderson, Cecile Andrews, Judi Aubel, Albert Bates, Walter Bortz, Robert Constanza, Cormac Cullinan, Jonathan, Dawson, John de Graaf, Robert Engelman, Joshua Farley, Susan Finkelpearl, Kate Ganly, Gary Gardner, Amy Han, Jim Hartzfeld, Toby Hemenway, Yoshie Kaga, Ida Kubiszewski, Susan Linn, Johanna Mair, Michael Maniates, Pamela Miller, Kevin Morgan, Peter Newman, David W. Orr, Michael Renner, Jonah Sachs, Ingrid Samuelsson, Juliet Schor, Michael H. Shuman, Roberta Sonnino, Wanda Urbanska
Avec les contributions de Yann Arthus-Bertrand, Eduardo Athayde, Almut Beringer, Stefanie Bowles, Michael Braungart, Ray Chengappa, Patrick Curry, Oystein Dable, Paul R. Ehrlich, Anne H. Ehrlich, Gregory C. Farrington, Helen Gallis, Kenin Green, Eddie Kasner, Satish Kumar, Serge Latouche, William McDonough, Lucie Ozanne, Julie Ozanne, Alexander Rose, Muhammad Yunus