1. Department of Physical and Environmental Sciences University of Toronto Scarborough Toronto ON M1C 1A4 Canada
2. Departamento de Métodos Cuantitativos y Sistemas de Información Facultad de Agronomía Universidad de Buenos Aires Buenos Aires C1417DSE Argentina
3. Facultad de Agronomía IFEVA Universidad de Buenos Aires CONICET Buenos Aires C1417DSE Argentina
4. Department of Geography University of Toronto Toronto ON M5S 3G3 Canada
5. School of Public Policy Simpson Centre University of Calgary Calgary AB T2P 1H9 Canada
6. Center for Sustainable Food Systems University of British Columbia Vancouver BC V6T 1Z2 Canada
7. Department of Sustainable Agriculture and Food Systems Kwantlen Polytechnic University Richmond BC V6X 3X7 Canada