Professor, Soil, Water, and Environmental Science, Joint Professor, Hydrology and Water Resources
Adjunct Scientist, Department of Entomology, Research Associate, Department of Ecology and Evolutionary Biology, Research Associate & Art Institute Instructor, Arizona-Sonora Desert Museum, Scientist-at-Large, The Pollinator Partnership, San Francisco, CA
Deputy Director for Climate Adaptation and International Development, Institute of the Environment, Professor of Climate Adaptation, School of Natural Resources and the Environment, Program Director, IRAP, Research Scientist, Institute of the Environment
Professor, College of Public Health, Division Director, Department of Community, Environment & Policy
Assistant Professor, Department of Community, Environment & Policy, Assistant Professor, Environmental Health Sciences
Assistant Professor of soil/subsurface microbiology, Soil Water and Environmental Science
Assistant Professor, Department of Hydrology & Atmospheric Sciences, Chair, Geophysics Commission of the U.S. National Section of the Pan American Institute for Geography and History
Professor, School of Architecture, Coordinator, Graduate Program in Design & Energy Conservation, Chair, Graduate Master of Science program on Design and Energy Conservation