By Wenner, Jann S.
By Stefano Mancuso, Alessandra Viola
By Economics, and the Environment The H. John Heinz III Center for Science
By Ryn, Sim Van Der, Cowan, Stuart
By Bob Freitag, Susan Bolton, Frank Westerlund
By Randy Olson
By Jon Erickson
By Pastor PH D, John
By Matt Simon
By Future Harvest, McNeely, Jeffrey A., Scherr, Sara J.
By Gretchen C. Daily
By Ackerman, Frank, Goodwin, Neva R., Dougherty, Laurie, Gallagher, Kevin, Bok, Derek
By Pauly, Daniel, Maclean, Jay
By Marusic, Kristina
By Buchmann, Stephen L
By Joelle Gergis
By Daly, Herman E., Costanza, Robert, Prugh, Thomas
By Holm Tiessen, Michael Brklacich, Gerhard Breulmann, Romulo S.C. Menezes
By Ramphal, S. S
By Walker, Brian, Salt, David, Reid, Walter
By Baydeck, Richard K., etc.
By Frank Ackerman, etc.
By Mosier, Arvin, Syers, J. Keith, Freney, John R.
By Edward O Wilson, Jim Ottaviani, C M Butzer, C M Butzer
By Peter Christie
By Pavan Sukhdev
By Edward Struzik
By Millennium Ecosystem Assessment
By Laurie Ann Mazur