Gordon and Betty Moore Foundation

Heising-Simons Foundation Alfred P. Sloan Foundation The G. Unger Vetlesen Foundation

Edward Botwinick and Victoria A. Brown Botwinick-Wolfensohn Foundation, Inc. Walter R. Brown Climateworks Foundation George and Wendy David The Henry L. & Grace Doherty Charitable Foundation. Charles Hayden Foundation International Hydrographic Organization Peter G. Joseph Dr. Rudolph & Mildred Joseph Foundation Nippon Foundation Andrew and Jessica Sieja The Simons Foundation The Zegar Family Foundation

$50,000 to $99,999 The Brinson Foundation The Pinkerton Foundation Riverkeeper, Inc. Richard M. Smith and Soon-Young Yoon Daniel E. and Heidi R. Spitzer Bernard & Anne Spitzer Charitable Trust University of Hawaii Foundation

$10,000 to $49,999 AllianceBernstein Thomas F. Anderson* Anonymous*+ Anonymous (5) Corwin and Virginia Atwood Donald D. Beane+ Daniel Bennett Bennett Family Foundation Stephanie K. Comer and Rob E. Craigie Fidelity Charitable Gift Fund Frank J. and Joanne M. Gumper* Ellen M. Herron W. M. Keck Foundation Florentin J-M. R. Maurrasse Orange and Rockland Utilities, Inc. Potsdam Institute for Climate Impact Research Constance A. Sancetta University of Southern California Volkswagenwerk Stiftung

$5,000 to $9,999 Dennis M. Adler and Robin Aronow Mark A. and Barbara H. Cane Fujen International Education Marshall F. Kwong and Vivian Yeh Arthur and Eva Lerner-Lam Paul J. Maddon Scott Mather Verizon Foundation

$1,000 to $4,999 Amelia J. Alverson Anonymous (5) Emil S. Bahary Kyra Tirana Barry and David Benjamin Barry Robert C. Berenbroick Blackbaud Giving Fund The Braewold Fund John V. Byrne Millard F. Coffin John Peter de Neufville Jishu Deng and Yuan Yuan H. James Dorman Double H, LLC Arden D. Down Douglas D. Durst Stanley B. Fertig and Isabelle Jouanneau-Fertig Andre Henrique Moscal Fiorotto Anita J. Hall-Frost Lorellen Marie Green David J. Greenwald and Beth Ann Greenwald Guo Consulting LLC John Kendrick Hall James D. and Nancy Hays Holly Hodder* Baerbel Hoenisch Lawrence L. and Mary Ann Hope Daniel James Horwitz and Shari Corinne Hyman Stanley S. Jacobs Michelle E. and Michael G. Kaiser Emily Klein William H. and Patricia F. Larrabee Jonathan Scott and Jeannie B. Lavine Robert H. and Gale Lawrence Jr. Jean Mia Leo and Richard J. Kuczkowski Lawrence R. Lynn and Wendy Epstein-Lynn Mizuho USA Foundation, Inc. Christopher W. Morgan and Rebecca L. Logan Carol S. and Gregory S. Mountain Cary L. and Dianna Mrozowski Stephen A. Myers Grace Myers Virginia McConn Oversby* Gideon G. Panter+ Panter Foundation Chuan Ping Amelia Estelle Prounis Raftopoulos and Haralambos Raftopoulos Michael and Martine Dreyfus Rawson William S. Reeburgh James H. and Virginia E. Robertson SAM Companies Darin Theodore Schroeder Schwab Charitable Fund Qian Song Edward S. Sproles Jr. Yongjun Su and Xiong Wen Tarson Family Charitable Remainder Trust Vanguard Charitable David Walker Dean Clifford Witte James and Frances Wood

$500 to $999 Kathleen Christina Callahan Randi Turken Cannon Chevron William B. and Eileen A. Dieck Douglas W. Edsall Rosalie Frost Bill P. Glass Douglas E. Hammond Daniel James Horwitz and Shari Corinne Hyman Dante Elizabeth Huff Joseph P. D. Hull Jr. Klaus H. Jacob Lynn J. Jehle Dennis V. and Carolyn Kent Leo F. Laporte Michael J. and Kate S. Lombardi Lisa Meyer Bob Alan and Marna Schrader Page Jr. Michael J. and Nancy Reinish Passow Ran Qin Maureen E. Raymo Carol Anne Raymond Julia S. Robbins William B. F. and Judith Ryan Marc L. Sbar Theresa Siracusano Lisa Tauxe and Hubert Staudigel Turner Construction Company Thomas V. Wagner Yongjun Su and Xiong Wen Howard Worzel

Up to $499 Mark Jay and Polina Adelson Yash Pal Aggarwal Nina Aguilar Peter Ferenc Almasi Rafael Almeida Mashael AlShalan Michael and Barbara S. Amdurer American Online Giving Foundation, Inc. Jeannine Anckaitis Rockne S. and Eva J. Anderson Lisa Argento and William Hodash Marie DeNoia Aronsohn Nancy Atherton Bruce C. Auld Noelle Bannister Sandra Baptista Muawia and Nimat H. Barazangi Anne Elizabeth Barschall Jeremy M. Barth Ronne Bassman-Agins Matthew C. Baum Ruth Beckman Cassy Beekman Suzanne Corkedale Belmore Jan Winslow Benzel and Stuart Rohrer Richard L. Berger Ellen and Stuart A. Berman Kelli Besse Werner and Christa Bischoff Gregory and Ginger Boitnott Phillip and Mary Sue Borgese Joanne Bourgeois Ernest and Rebecca Breeding Jr. Carl Brenner Deborah E. Brown Hannes and Mary Ann Brueckner Douglas Brusa Donna Louise Buono Peter R. Buseck Charles V. and Mary J. Callan Steven C. Cande Philip D. and Brigitte Carmichael Ryan Carmichael Loyd Case Victoria Cerullo Eric Daniel Chasser Vicki Annette Childers and Brenda Ekwurzel Miriam I. Cinquegrana Elizabeth A. Clark Jonathan Evan and Cynthia Leigh Cohen David A. Colangelo Kathie Collins Eric Conroy Robert B. Cook Richard A. and Ellen L. Cook Kathleen Smyth Cook David W. Cooke Deborah Coplin Priscilla Cunningham Patricia A. Daly, OP Irene C. Davis Emmanuel and Jenna de Buretel Arend E. Dikkers and Deborah Durkin Branko Djapic Olivier Dung and Ines Do Ngoc Costin Dobrin Ximena Duenas Doreen Duffy Emilie Dufour Michael Elovitz Jacqueline A. Erickson Craig C. Evans Michael Neil Evans Nicholas Eyles Emma Christina Farmer Meghan Fay Amanda R. Fay Betsy Franco Feeney Arlene Fiore Field Scott Christopher Filipkowski Angela Firestone Michael F. Forlenza Lynn Forrest Paul Jeffrey and Janet B. Stroup Fox Charles J. Franck James Huntington Frantz James B. Gaherty and Donna Jean Shillington Bill & Melinda Gates Foundation John Geddie Jennifer Genrich Alice H. Gerard Patrick James and Bonnie Gilrane Susan B. Glantz Glenn and Elizabeth Goldman Steven L. Goldstein and Kerstin A. Lehnert Hal and Susan Agoston Goldstein Dorota Gonera Andrew M. Goodwillie Vivien M. Gornitz Green Mirror Corporation Edward Haas John Patrick Halpin Ryan Hart and Daria Askari Timothy B. Harwood James and Patricia Whalen Helwig Augustine Henneh Anne Henson Sean Michael Higgins Helen Hodge Susan M. Holgate and Robert S. Barron Ann Elizabeth Holmes George Holober Kay F. Huey Mei Hunkins Harriet Joyce Hyams Elyas F. Isaacs Robert D. Jacobi David Janasek Stephen P. Kaluzny M. Whitney and Fred Jacob Keen Andrew Keen Paul Keenan Peter B. Kelemen Maxwell Kelley Pamela Kelley Adrienne M. Kenyon Lydia V. Kesler Dimitra Kessenides Tom Kiernan Jonathan Kingslake and Jennifer Kingslake George W. Kipphut Dalia Kirschbaum Jerry B. Kisslinger and Leslie Fern Boden Linda Klempner Douglas R. and Cecilia L. Kodama Nadine Kolowrat Carolyn Kopp Barry Kornblum Mark Kramer Stephen J. and Audrey S. Kurtz Henry B. Lacey Jesse E. Lang Chris Langdon Heather Anna Langsner Susan D. Lee Daniel and Lynn Lehrfeld Paul H. Levine Stephen Dana Lewis Nancy Li Shilei Li Shuyu Liu and Hongyan Wang Caitlin Locke Jon Lok James D. Lowell Miriam Lupien Amy B. MacDermott Virginia Marie Maher Marvin H. Malater MaryAnn Love Malinconico Janet J. and Charles A. Mangano Daniel B. Markaity Glenna Marra Stephen and Kathryn G. Marshak Audrey A. Massa Christine M. McCarthy Kathryn Ann McCullough Cecilia M. G. McHugh Galen A. McKinley Louise McMath Carol McMillan Stephen Russell McNutt Nicholas Charles Mehmel Estelle K. Meislich Marian V. Mellin Regina M. Mendez Sara N. Menegus Alyssa Nicole Meyers John J. Michels Donald S. Miller Alison Catherine Miller Andrew James Miller George and Sylvia R. Miller Natalie Miller Katherine Mitchell Linda L. Moeller Martin W. and Jacqueline C. Molloy Joseph Benjamin Morris Kenneth A. Moss Randall and Sandra Carr Motland Victoria G. Nazario Teruko S. Neuwalder Karen Ngai Leslie Nina Suzanne Bridget O'Connell and Thomas A. Christopher Sarah K. Odland Alexandra Ortiz John Palmer Tuula Pasola-Alberino Radhika Patnala Michael R. and Renee Perfit Stephen G. Peterson David and Agnes M. Peterson Janice Pfeiffer Mary F. Pickering Mary Frances F. Prokorym Julianne Quinn Richard C. and Denise Packer Quittmeyer Phyllis C. Rabinowitz Emma Clare Rainforth Robert and Beatrice Rasmussen Norman and Vivian Resnick Frank Revetta Stephen L. and Diane S. Richter Martha L. Roberts Ricardo A. Rodriguez Michael J. Rodriques and Renee L. Aubry William D. Romaine Gerald Ronkin Jeff Rosenzweig William F. and Virginia C. Ruddiman Andrew Russakoff Gray Russell Raymond Ruth Bridget Ryan Rita T. Salemo Alain L. and Amy Ignatin Sanders Timothy P. Schieffelin Ronald G. and Phyllis D. Schmidt Roger E. Schwed and Laura F. Dukess Guenther Seidel B. Alan and Lynne Seidler Robert Mehmel and Patrice M. Serret-Mehmel Kimiyo Setoguchi Brian Matthew Shaw Ashley Sheed James Salvatore Signorelli Angela Leigh Slagle Jason E. Smerdon Glenn J. Smith and Joanna Talarico Taylor Barton Smith Arthur E. and Janis O. Smith Jr. Gabriella Marie Smith Gavin C. and Ellen Smith Laura A. Smoliar and Mark Arbore Terry Snyder Jennifer Maria Sobolewski Dongping Song Charlotte K. Sorger Louise Spence Stanley W. Stillman Helen Stoddard Russell Rye Stoll Oscar Strongin Martin and Christine Stute Ronald H. Sugarman James Sutherland Carol Suttile Charles N. Tacke Jr. Francesca Terenzi Julian A. Thorne Barret Tirona Raleigh and Catherine A. Tozer Kevin T. Uno Michael and Xenia+ Valitzky Pamela Van Hoven Clark Stacey Lynn Vassallo Karen Vassallo Valerie Vivian Nanette Wachter Daniel C. Walsh Marion Weaver Steve Webb Gloria Weber+ Robert A. Weber+ John F. and Paula Lawrence Wehmiller Marc E. Weksler and Babette B. Weksler Kevin Thad Wheeler William M. and Shirley Wilcox Stephen and Debbie K. Wilkowski Matthew K. Williams Daniel Wolff Jennifer Wong Cassie Xu Wenchang Yang Louis Yuen Youxue Zhang Gary W. Zielinski Seymour Zubkoff