ERG Core Faculty

The faculty of ERG currently consists of seven core professors of Energy and Resources (David Anthoff, Duncan Callaway, John Harte, Dan Kammen, Lara Kueppers, Catherine Koshland, and Isha Ray), one adjunct professor (Margaret Torn), and more than one hundred affiliated faculty members holding appointments in a wide range of departments across the Berkeley campus. ERG’s chair is drawn on a rotating basis from among the affiliated faculty. The current chair of ERG is Daniel Kammen, a Pro­fes­sor of Energy with Energy and Resources Group as well as The Goldman School of Public Policy and the Department of Nuclear Engi­neer­ing.

List of ERG Affiliated Faculty
List of ERG Faculty by Areas of Primary Interest

Please note that due to the high volume of requests ERG core faculty members receive, they are rarely able to accept short-term visiting students and may not respond to inquiries. If you have questions about ERG admissions, please refer to the ERG Admissions webpages or contact


David Anthoff

Assistant Professor

David Anthoff is an environmental economist who studies climate change and environmental policy. He co-develops the integrated assessment model FUND that is used widely in academic research and in policy analysis.

Duncan Callaway

Associate Professor

Dr. Callaway’s teaching focuses on power systems and energy efficiency. His research can be categorized in three areas: modeling and control of aggregated storage devices; power management; and system analysis of energy technologies and their impact.

Youjin Chung

Assistant Professor

Youjin Chung is Assistant Professor of Sustainability and Equity with a joint appointment in the Energy and Resources Group and the Department of Environmental Science, Policy, and Management.

John Harte


John Harte is a physicist turned ecologist. His research interests span ecological field research, the theory of complex systems, and policy analysis. Current interests include applying insights from information theory to the analysis of complex ecosystems and empirical investigation of climate-ecosystem feedback dynamics.

Andrew D. Jones

Assistant Adjunct Professor

Dr. Jones is an Earth scientist who works at the interface of human and environmental systems. His research uses quantitative models and data analysis to understand climate change and human-Earth system interactions at decision-relevant scales. He also collaborates with social scientists and interacts closely with stakeholders to understand how science can effectively provide actionable insight […]

Daniel M. Kammen

ERG Chair, Professor

Daniel Kam­men is the Class of 1935 Dis­tin­guished Pro­fes­sor of Energy with appoint­ments in the Energy and Resources Group, The Gold­man School of Pub­lic Pol­icy, and the Depart­ment of Nuclear Engi­neer­ing at the Uni­ver­sity of Cal­i­for­nia, Berke­ley.

Catherine Koshland

Professor, Vice Chancellor for Undergraduate Education

Dr. Koshland’s research is at the intersection of energy, air pollution and environmental (human) health emphasizing mechanistic approaches as well as a systems perspective. It is conducted at multiple scales, from mechanistic analyses of combustion products in flow reactors to control strategies in urban airsheds to studies of human health.

Lara Kueppers

Associate Professor

Lara Kueppers is an Associate Professor in the Energy and Resources Group, with a Faculty Scientist appointment at Berkeley Lab. She is an interdisciplinary environmental scientist, whose research focuses on ecological responses and feedbacks to climate change.

Isha Ray


Professor Ray’s research interests are water and development; technology and development; common property resources; and social science research methods. Her research projects focus on access to water and sanitation for the rural and urban poor, and on the role of technology in improving livelihoods.

Margaret Torn

Adjunct Professor

The focus of my work is carbon and nutrient cycling in terrestrial ecosystems and trace-gas flux between soil and atmosphere. I conduct research on soil carbon, global change, and the impacts of human activities on ecosystem processes.

Faculty Emeriti

John P. Holdren

Professor Emeritus

Dr. John P. Holdren is Assistant to the President for Science and Technology, Director of the White House Office of Science and Technology Policy, and Co-Chair of the President's Council of Advisors on Science and Technology (PCAST).

Richard Norgaard

Professor Emeritus

Among the founders of the field of ecological economics, Dr. Norgaard's recent research addresses how environmental problems challenge scientific understanding and the policy process, how ecologists and economists understand systems differently, and how globalization affects environmental governance.

In Memoriam

Ned Birdsall

At UC Berkeley, Dr. Birdsall helped build two groups from scratch: the Plasma Theory and Simulation Group and the Energy and Resources Group. For his many contributions to UC Berkeley Ned was awarded the Berkeley Citation in 1991.

Mark M. Christensen

Mark N. Christensen was instrumental in founding the Energy & Resources Group at UC Berkeley in the 1970s, in the midst of a major energy crisis. As professor and teacher in ERG, Chris was a complex thinker, bringing together equal parts natural science, social science, philosophy, and vision.

Alex Farrell

Dr. Farrell worked on a wide range of energy issues and technologies, from biofuels and oil shale to electricity systems and the low carbon fuel standard. His work was characterized by rigorous quantitative analysis and an engagement with industry and policymakers that is rare in academia.

Jack Hollander

Professor Emeritus

Dr. Hollander’s multifaceted career has included basic research in nuclear-structure physics, energy and environment research, and academic administration. Professor Emeritus Hollander was the co-founder of the environmental research program at Lawrence Berkeley Laboratory (1968) and first director of its Energy and Environment Division (1973-1976).

Gene I. Rochlin

Dr. Rochlin's research interests included science, technology and society, cultural and cognitive studies of technical operations, the politics and policy of energy and environmental matters, and the broader cultural, organizational and social implications and consequences of technology – including large technical systems.

Lee Schipper

In the early 1970s, Dr. Schipper joined the Energy and Resources Group where he worked with John Holdren. He contributed to the Second and Third Assessment Reports of the Intergovernmental Panel on Climate Change, which was awarded the Nobel Peace Prize in 2007.