Board of trustees

Fortune magazine called our board one of the most influential nonprofit boards in the country.


Mark W. Heising, Chair
Managing Director, Medley Partners

Shelby W. Bonnie, Vice Chair
Co-founder, CNET Networks

Ruth DeFries, Ph.D., Vice Chair
Denning Family Professor of Sustainable Development, Department of Ecology, Evolution, and Environmental Biology, Columbia University

The Honorable Thomas H. Kean, Vice Chair
Chairman, Carnegie Corporation of New York


G. Leonard Baker, Jr.
Managing Director, Sutter Hill Ventures

Joshua Bekenstein
Managing Director, Bain Capital

Georges C. Benjamin, MD
Executive Director, American Public Health Association

Michael D. Bills
Founder and CIO, Bluestem Asset Management

Matt Cohler
General Partner, Benchmark

Christopher A. Cole
Chairman, Ardea Partners, LLC

Art Cooley*
Naturalist and former Expedition Leader, Lindblad Expeditions

Christopher Costello
Professor of Natural Resource Economics, Bren School UCSB; Research Associate, National Bureau of Economic Research

Leslie Dach
Strategic Consultant

Susan Ford Dorsey
President, Sand Hill Foundation

Stanley Druckenmiller

Kirsten J. Feldman
Retired Managing Director, Morgan Stanley;
Chair, Steep Rock Association

Carl Ferenbach
Chairman, High Meadows Foundation

Lynn R. Goldman, M.D., M.P.H.
Pediatrician; Dean, George Washington University School of Public Health and Health Services

Charles J. Hamilton, Jr.
Senior Counsel, Windels Marx Lane & Mittendorf, LLP

Alice C. Hill
David M. Rubenstein Senior Fellow for Energy and the Environment, Council on Foreign Relations

Lisa Keith
Development Consultant

Dani Lambert
Investor and Advisor

Richard J. Lazarus
Howard J. and Katherine W. Aibel Professor of Law, Harvard University

Abby Leigh

Katherine Lorenz
President, Cynthia and George Mitchell Foundation

Frank Loy
Former Under Secretary of State for Global Affairs

Secretary Ray Mabus
Former Secretary of the Navy

Susan Mandel
ZOOM Foundation

Marie Lynn Miranda, Ph.D.
Provost, University of Notre Dame

Kathryn Murdoch
President, Quadrivium Foundation

Susan Oberndorf
President, Susan and William Oberndorf Foundation

Kenneth Olden, Ph.D.
Former Director, National Institute of Environmental Health Sciences and the National Toxicology Program/National Institutes of Health;
Former Director of the National Center for Environmental Assessment/U.S. Environmental Protection Agency

Stephen W. Pacala, Ph.D.
Frederick D. Petrie Professor in Ecology and Evolutionary Biology, Princeton University

Bruce V. Rauner
Former Governor, State of Illinois
Former Chairman, GTCR

Julian H. Robertson, Jr.
Founder and Chairman, Tiger Management, LLC

Sarah Robertson

Virginia Sall
Co-founder, Sall Family Foundation

Peggy M. Shepard
Co-founder and Executive Director, West Harlem Environmental Action, Inc. (WE ACT for Environmental Justice)

Lise Strickler
Three Cairns Group

David S. Vogel
CEO & Chief Scientist, Voloridge Investment Management

Abigail Wexner
CEO, Whitebarn Associates

Charles F. Wurster, Ph.D.*
Professor Emeritus of Environmental Sciences, Marine Sciences Research Center, State University of New York at Stony Brook

Xue Lan
Cheung Kong Chair Professor and Dean of Schwarzman College, Tsinghua University

Honorary trustees

Gene E. Likens, Ph.D.

N. J. Nicholas, Jr.

George M. Woodwell, Ph.D.*

* Founding trustees