1. School for Environment and Sustainability, University of Michigan, Ann Arbor, MI 48109, USA.
2. School of Public Policy, Tel Aviv University, Tel Aviv, Israel.
3. Department of Geography and Spatial Sciences, University of Delaware, Newark, DE 19716, USA.
4. Department of Plant and Soil Sciences, University of Delaware, Newark, DE 19716, USA.
5. Rubenstein School of Environment and Natural Resources, Gund Institute for Environment, University of Vermont, Burlington, VT 05405, USA.
6. Department of Ecology, Evolution, and Environmental Biology, Columbia University, New York, NY 10027, USA.
7. Department of Earth and Environmental Engineering, Columbia University, New York, NY 10027, USA.
8. International Maize and Wheat Improvement Center (CIMMYT), New Delhi, India