Our Team
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![Portrait of Caitlin Peterson](https://www.ppic.org/wp-content/uploads/2023/05/staff-photo-caitlin-peterson-2023.jpg)
![Portrait of Andrew Ayres](https://www.ppic.org/wp-content/uploads/2019/12/staff-photo-andrew-ayres.jpg)
![Portrait of Sarah Bardeen](https://www.ppic.org/wp-content/uploads/2023/06/staff-photo-sarah-bardeen-2023.jpg)
Sarah Bardeen
Senior Center Communications Manager
![Portrait of Spencer Cole](https://www.ppic.org/wp-content/uploads/2023/06/staff-photo-spencer-cole-2023.jpg)
Spencer Cole
Research Associate
![Portrait of Bradley Franklin](https://www.ppic.org/wp-content/uploads/2024/04/staff-photo-bradley-franklin-2024.jpg)
![Portrait of Brian Gray](https://www.ppic.org/wp-content/uploads/2017/04/staffphoto-gray.jpg)
![Portrait of Kyle Greenspan](https://www.ppic.org/wp-content/uploads/2023/06/staff-photo-kyle-greenspan-2023.jpg)
Kyle Greenspan
Research Associate
![Portrait of Ellen Hanak](https://www.ppic.org/wp-content/uploads/2023/06/staff-photo-ellen-hanak-2023.jpg)
![Portrait of Jennifer Harder](https://www.ppic.org/wp-content/uploads/2023/05/staff-photo-jennifer-harder.jpg)
![Portrait of Jerica Miles](https://www.ppic.org/wp-content/uploads/2023/06/jerica-miles.jpg)
Jerica Miles
Center Administrator
![Portrait of Jeffrey Mount](https://www.ppic.org/wp-content/uploads/2017/04/StaffPhoto-jmount.jpg)
![Portrait of Gokce Sencan](https://www.ppic.org/wp-content/uploads/2023/06/staff-photo-gokce-sencan-2023.jpg)
![Portrait of Ted Sommer](https://www.ppic.org/wp-content/uploads/2023/05/staff-photo-ted-sommer.jpg)
Adjunct Fellows
Van Butsic
Adjunct Fellow, Public Policy Institute of California
Assistant Cooperative Extension Specialist & Adjunct Professor, University of California, Berkeley, Environmental Science Policy and Management Department
Expertise: Land use planning
James Cloern
Adjunct Fellow, Public Policy Institute of California
Senior Research Scientist, United States Geological Survey
Expertise: Aquatic ecology
Alvar Escriva-Bou
Adjunct Fellow, Public Policy Institute of California
Assistant Professor, Civil and Environmental Engineering Department and Institute of the Environment and Sustainability, University of California, Los Angeles
Expertise: Water systems engineering, water policy, climate change policy
Greg Gartrell
Adjunct Fellow, Public Policy Institute of California
Expertise: Water resource engineering
Ted Grantham
Adjunct Fellow, Public Policy Institute of California
Cooperative Extension Specialist, University of California, Berkeley
Expertise: River science
Josué Medellín-Azuara
Adjunct Fellow, Public Policy Institute of California
Associate Professor of Civil and Environmental Engineering, University of California, Merced
Expertise: Water policy, economics, hydrologic modeling
David Mitchell
Adjunct Fellow, Public Policy Institute of California
Principal, M.Cubed
Expertise: Economics
Sarah Null
Adjunct Fellow, Public Policy Institute of California
Professor, Utah State University
Expertise: Water policy, systems modeling, climate change adaptation
Kurt Schwabe
Adjunct Fellow, Public Policy Institute of California
Professor, University of California, Riverside, School of Public Policy
Expertise: Economics
Research Network
Newsha Ajami
Director of Urban Water Policy
Stanford University, Water in the West
Expertise: Water resource hydrology
Maura Allaire
Assistant Professor, Water Economics and Policy
University of California, Irvine
Expertise: Environmental economics
Timothy Bradley
Professor, Ecology and Evolutionary Biology
University of California, Irvine
Expertise: Aquatic ecology
Ellen Bruno
Assistant Cooperative Extension Specialist
Department of Agricultural and Resource Economics - University of California, Berkeley
Expertise: Agricultural economics, environmental economics
Daniel Cayan
Research Meteorologist
University of California, San Diego, Scripps Institution of Oceanography
Expertise: Climate science
Bonnie Colby
Professor of Agricultural and Resource Economics and Hydrology and Water Resources
University of Arizona
Expertise: Water and energy economics
Helen E. Dahlke
Associate Professor
Integrated Hydrologic Sciences, University of California, Davis
Expertise: Surface water, groundwater
Frank Davis
Distinguished Professor, Bren School of Environmental Science and Management
And Director, LA Kretz Center for Research at Sedgwick Reserve, University of California, Santa Barbara
Expertise: Landscape ecology
Michael Dettinger
Visiting Researcher, Scripps Institution of Oceanography
Michael Dettinger Climate Science, LLC
Retired, Research Hydrologist, United States Geological Survey
Expertise: Hydroclimatology
John Durand
Research Scientist
University of California, Davis
Expertise: Estuarine ecology and restoration
Kristen Dybala
Principal Ecologist
Point Blue Conservation Science
Expertise: Conservation, riparian and wetland ecosystems, restoration
Andrew T. Fisher
Professor of Earth and Planetary Sciences
University of California, Santa Cruz
Expertise: Groundwater
John Fleck
Director
University of New Mexico Water Resources Program
Expertise: Colorado River Basin governance
William Fleenor
Senior Researcher
University of California, Davis
Expertise: Water resource engineering
Graham Fogg
Professor Emeritus of Hydrology,
Departments of Land, Air & Water Resources, and Earth and Planetary Sciences, University of California, Davis
Expertise: Groundwater
Richard Frank
Director
University of California, Davis, School of Law, Environmental Law and Policy Center
Expertise: Environmental and water law
Sarge Green
Project Director
Fresno State University, California Water Institute
Expertise: Water resource management
Thomas Harter
Hagan Endowed Chair in Water Management and Policy
University of California, Davis, Land, Air, and Water Resources
Expertise: Groundwater hydrology
David Jassby
Associate Professor, Department of Civil and Environmental Engineering
University of California, Los Angeles
Expertise: Water and wastewater treatment, membrane separations, electrochemistry
Katrina Jessoe
Associate Professor
University of California, Davis, Agricultural and Resource Economics
Expertise: Economics
Yufang Jin
Assistant Professor
University of California, Davis, Remote Sensing and Ecosystem Change
Expertise: Ecosystem change
Douglas Kenney
Director, Western Water Policy Program
Getches-Wilkinson Center for Natural Resources, Energy and the Environment; University of Colorado
Expertise: Colorado River policy
Wim Kimmerer
Research Professor
San Francisco State University, Romberg Tiburon Center
Expertise: Aquatic ecology
Susie Kocher
Forestry Advisor
University of California Cooperative Extension
Expertise: Forestry and fire ecology, extension education
Matt Kondolf
Professor
University of California, Berkeley, Department of Landscape Architecture & Environmental Planning
Expertise: River management
Carolyn Kousky
Associate Vice President for Economics and Policy
Environmental Defense Fund
Expertise: Economics
Yusuke Kuwayama
Assistant Professor, School of Public Policy
University of Maryland Fellow, Resources For the Future
Expertise: Water resource economics
Jaymin Kwon
Associate Professor
California State University, Fresno
Expertise: Environmental health, exposure assessment, air quality
Jay Lund
Director
University of California, Davis, Center for Watershed Sciences
Expertise: Water resource engineering
Mark Lundy
Assistant Professor, Cooperative Extension, University of California, Davis
Expertise: Grain cropping systems in the state of California
Peter Moyle
Associate Director
University of California, Davis, Center for Watershed Sciences
Expertise: Fish biology
Doug Parker
Director
University of California, California Institute for Water Resources
Expertise: Economics
Debra Perrone
Assistant Professor
Environmental Studies Program, University of California, Santa Barbara
Expertise: Water policy, groundwater systems, water-food-energy tradeoffs
Gregory Pierce
Co-Director, UCLA Luskin Center for Innovation
Co-Director, UCLA Water Resources, Faculty Group Faculty Member, UCLA Department of Urban Planning
Expertise: Water equity policy
Nicholas Pinter
Professor
University of California, Davis, Center for Watershed Sciences
Expertise: River management
Brett Sanders
Professor
University of California, Irvine, School of Engineering
Expertise: Water resource engineering
Kelly T. Sanders
Associate Professor of Civil and Environmental Engineering
University of Southern California
Expertise: Energy-water nexus
David Sedlak
Co-Director
University of California, Berkeley, Berkeley Water Center
Expertise: Water quality engineering
Edward Spang
Assistant Professor, Food Science and Technology
University of California, Davis
Expertise: Food-water-energy nexus
Eric D. Stein
Department Head, Biology Department
Southern California Coastal Water Research Project
Expertise: Ecohydrology, environmental assessment, stormwater monitoring and assessment
Scott Stephens
Henry Vaux Special Professor of Forest Policy
University of California, Berkeley, Environmental Science Policy and Management Department
Expertise: Fire ecology and management
Daniel Sumner
Frank H. Buck, Jr. Distinguished Professor in the Department of Agricultural and Resource Economics, University of California, Davis
Director, University of California Agricultural Issues Center
Expertise: Economics
Daniel Swain
Research Fellow, National Center for Atmospheric Research,
California Climate Fellow, The Nature Conservancy, Researcher,
Institute of the Environment and Sustainability at UCLA
Expertise: Regional climate change and extremes
Barton “Buzz” Thompson
Director
Stanford University, Woods Institute for the Environment
Expertise: Environmental law
Paul Ullrich
Assistant Professor
Regional and Global Climate Modeling, University of California, Davis, Department of Land, Air, and Water Resources
Expertise: Regional climate change
Joshua Viers
Professor, Civil & Environmental Engineering, Director, Center for Information Technology Research in the Interest of Society
Associate Dean for Research, School of Engineering, University of California, Merced
Expertise: Watershed science and management
Robert Wilkinson
Adjunct Professor, Bren School of Environmental Science and Management
Senior Lecturer Emeritus, Environmental Studies University of California, Santa Barbara
Expertise: Public policy
Sarah Yarnell
Senior Researcher
University of California, Davis, Center for Watershed Sciences
Expertise: River science and management
Harrison “HB” Zeff
Civil Engineer, Lower Colorado Basin Research and Modeling Team
US Bureau of Reclamation
Expertise: Water resources