Dean's Distinguished Professor of Landscape Ecology & Sustainability Science, Arizona …

Helmholtz Centre for Environmental Research - UFZ

Emeritus Scientist, USDA, Forest Service, International Institute of Tropical Forestry

Arizona State University

Lloyd Viel Berkner Regental Professor, The University of Texas at Dallas

Sociology, University of Chicago

Professor, University of Queensland

Professor of Sustainability

Sociology, University of Chicago

Emeritus Professor Natural Sciences, University of Southampton