Ruth S. DeFries,^* Erle C. Ellis,^** F. Stuart Chapin,^*** Pamela A. Matson,^**** B. L. Turner,^***** Arun Agrawal,^****** Paul J. Crutzen,^******* Chris Field,^******** Peter Gleick,^********* Peter M. Kareiva,^********** Eric Lambin,^*********** Diana Liverman,^************ Elinor Ostrom,^{*************} Pedro A. Sanchez,^* James Syvitski<sup>**************


*</sup>Ruth S. DeFries (rd2402@columbia.edu) and Pedro A. Sanchez are affiliated with Columbia University, in New York, New York.
^**Erle C. Ellis is affiliated with the University of Maryland, Baltimore County, in Catonsville.
^***F. Stuart Chapin III is affiliated with the University of Alaska, in Fairbanks.
^****Pamela A. Matson is affiliated with Stanford University, in Stanford, California.
^*****B. L. Turner II is affiliated with Arizona State University, in Tempe.
^******Arun Agrawal is affiliated with the University of Michigan, in Ann Arbor.
^*******Paul J. Crutzen is affiliated with the Max Planck Institute for Chemistry, in Berlin, Germany.
^********Chris Field is the director of the Department of Global Ecology at the Carnegie Institution of Washington, in Stanford, California.
^*********Peter Gleick is affiliated with the Pacific Institute for Studies in Development, Environment, and Security, in Oakland, California.
^**********Peter M. Kareiva is affiliated with The Nature Conservancy, in Arlington, Virginia.
^***********Eric Lambin is affiliated with Stanford University, in Stanford, California, and with the Catholic University of Louvain, in Louvain-la-Neuve, Belgium.
^************Diana Liverman is affiliated with the University of Arizona, in Tucson.
^{*************}Elinor Ostrom is affiliated with Indiana University, in Bloomington.
^{**************}James Syvitski is affiliated with the University of Colorado Boulder.