Sharon Harlan, Northeastern University, Boston, MA, United States, Paul Chakalian, University of Oklahoma, Norman, United States, Juan Declet-Barreto, Union of Concerned Scientists Washington DC, Washington, DC, United States, David Hondula, Arizona State University, School of Geographical Sciences and Urban Planning, Tempe, AZ, United States and Darrel Jenerette, University of California Riverside, Riverside, CA, United States