Beck, Ulrich
Behrens, William H.
Bookchin, Murray
Boyan, A. Stephen
Brown, Lester
Bullard, Robert D.
Burke, Tom
Carruthers, David
Dobson, Andrew
Dodge, Jim
Dryzek, John S.
Eckersley, Robyn
Foreman, Dave
Fung, Archon
Goodin, Robert E.
Guha, Ramachandra
Hardin, Garrett
Hawken, Paul
Kahn, Herman
Karkkainen, Bradley
King, Ynestra
Kovel, Joel
Krauss, Celene
LaDuke, Winona
Leal, Donald R.
Lee, Kai N.
Lomborg, Bjorn
Lovins, Amory
Lovins, L. Hunter
Meadowcroft, James
Meadows, Dennis L.
Meadows, Donella H.
Naess, Arne
O'Brien, Mary
Ophuls, William P.
Paehlke, Robert
Plumwood, Val
Poguntke, Thomas
Sagoff, Mark
Schlosberg, David
Shiva, Vandana
Simon, Julian L.
Stavins, Robert
Torgerson, Douglas
Wapner, Paul
Whitehead, Bradley
Wissenburg, Marcel