Kris Hansen Ioannis Ioannou Henry Fontain Anthony Anaxagorou Cathy Ui Chulain Ryan Red Corn Mayan elder Flordemayo Josh Tapen Laina Raveendran Greene Gregory Kallenberg Wendy Van DIlla José María Figueres Ted Turner Aaliyah Jackson Robert Liberty Raymond Kethledge Eric Corey Freed Jacob Glass Céline Cousteau Martha Kantor Ludovico Einaudi Quynhanh Do Edward Burtynski Gregory Greene Jacqueline Patterson Eli Spevak Count Anton Wolfgang von Faber-Castel David Suzuki Jeannette Armstrong Sônia Bone Guajajara Chris Jordan Avital Ronel Amed Jkoghlaf Matthew Radcliff Losang Monlam Madeline Janis Franklin Hill John Marshall Roberts Barbara Dr.Sattler Sean Penrith Carly Vynne Alixa Garcia David Abrams Daniel Magallon Janeen Comenote Rand Chatterjee Dr. Dan Wildcat Fred L. Miller Baba Brinkman Omodolapo Barakat Babtunde Gary Cohen Hrabba Gunnarsdottir Timothy Nuvangyaoma Bill Nye Jessica Morey Paul Maguire Jed Emerson Kathryn Mersmann Josh Drury Dr. Sm’hayetsk Teresa Ryan David Montgomery Craig Leeson Karl Beitel Rafael Gallo Anum Sheikh Muath AlRumayh Judith LeBlanc Harry Greenfield Lewis Mehl-Madrona, MD Nani’eeth Peter Anndrea Herrmann Amy Peradotta Peter Seligmann Casey Camp-Horinek Cathy Fitzgerald Dale Hallat Julia Butterfly Hill Ben Cook Anna Lappe M. Cochise Anderson John Stednick Jeremy Faison Randy Woodley Sarah Jayne Blakemore Kyle Thiermann Dr. Robin Wall Kimmerer Paul Gilding Sanne Knudsen Ken Blanchard Nate Wagner Gabrielle Tayac Sarah Crowell Matika Wilbur Rehman Y. Abdulrehman, Ph.D. Marina Tolou-Shams, Ph.D. Isidro Baldenegro Sikowis Nobiss Jeff Ditzenberger Suzanne Hayden Per Klevnäs Trevor Hill Karen Ross Nixiwaka Yawanawa Lord Nicholas Stern Ron Hunter Jane Goodall Simon Baron-Cohen Sarah Edstrom Evan Fraser Matthew Mehalick Wallace Black Elk Tala Debs Iris Magally Pretel Trejo Carol Sanford Janos Pasztor Julián Castro John Lloyd Leila Salazar-Lopez Amish Jha, PhD Jerry Honawa John Wick Christine Worlen, Ph.D. Leslie McCarthy Anja Taylor Charlie Koven Roz Savage Jay Stuart Karl Sharro Gretchen Biermann Ponder Jaroslaw Karl-Henrick Robert Saul Griffith John Cruden Doreen Bogdan-Martin Alexandros Washburn Simon Sidello Leroy Little Bear Christoph Lueneburger Dennis Wilde John Holdren Grandmother Marie Alice Campos Freir Donald Morse Garth Lenz Mario Leone, Jr, Andrew Faust Ami Zota Chris Goldstandt Cosmas Zavazava Naomi Oreskes Jane Mayer Kristen Leonard Jack Scalo Gordan Tootootsis Rowen White Tara Wilkins Alfie Hamid Dr. Sally Uren Josh Axe llarion Merculeiff Julie Garver Mary Donnell Alejandro Durándro Durán Carl Safina Andrew Dudley Shannon McComb Jeffrey Hollender Mari Margil Kevin Danaher Chris Field Thomas Lovejoy Larry Littlebird Sherman Alexie Taylor Brorby Mary O'Malley Gerhard Wannemarcher Greg MacGillivray Jeffrey Sachs Kumud M Srinivasan Jo Simpson Jeni Klugman Jessica Guynn Tom Sanzillo Frank Dr. Ackerman Elder Albert Marshall Jennifer Morgan Shaunna Morgan Siegers Karl Grossman Kassie Bracken Guy Bigwood David Miliband Bernice Sadler Raney Aronson-Rath Hon. 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Crow Doug Tompkins David Okimoto Rory Sutherland Lisa Jackson Sylvia Earle Freida Jacques Mary Anderson Kevin J. Patel Rick Kiyak-Boughton Dr. Tim Chapin Johanna Bresnan Dr. David Suzuki Peter Singer Bryan Stevenson Barry Stevens Laurence Kemball-Cook Farhana Yamin Anne Songole Dr. Susan Pineda Mercado F.Sherwood Rowland Ross Gelbspan Sophia de Sousa Sam Pizzigati Brian Libby Geraldine Patrick Encina Eckhart Tolle Monica Chuji Gualinga Mary Robinson Bea Perez Baroness O'Neill Katherine Wilkinson Larry Parish Andrea Reid Natalie Ramsland Jason Raschke Joseph Stiglitz Doug Cohen Andrew St. Ledger A. Michael Spence Carter Emmart Aoife Kelleher Bob Stacey Katharine Wilkinson Miki Mistrati Rev. 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Jones Richard Hilt Daniella Tilbury Doreen Boghan-Martin Joss Tantram David Newman Mark Zitter Martha Thorne Sandra Postel Greg Spencer Ahimsa Sumchai Indy Siewert Shane Gero, Ph.D. Jeffrey Hogue Bren Smith Zukiswa White Nafeez Ahmed Kimberle Crenshaw Marianne Williamson Dianna Cohen Kirk Titus Richard Renaldi Adenike Titilope Oladosu Bella Azbug Judith Orloff MD Sara Sozzani Maino Manari Ushigua Claire Wayner Don Cheadle Chairman Archambault Dirk Philipsen Bjorn Stigson Rhone Resch Nan Roman Mara Dolan Margaret Kwateng Dr. Marcus Eriksen Issac Nick Estes Gideon Rosenblatt Deborah Harse Isabel Sebastian Art Hunt Osprey Orielle Lake Rachel Solotaroff Barry Schwartz Polly Higgins Henrik Madson Ryland King Renee Lertzman Auden Schendler Szuzon Wong JC Riggs Jules Kortenhorst Brian Mullis Paul Morrell Drew Dellinger Bobbie Brown Maria Revella Asa Miller Guilherme Albieri Thomas Linzey Kelllie Berns Dr. Stefan Leutenegger David Helvarg Dr Cathy Fitzgerald Silvia Marcon Sammy Gensaw III Dr. Rae Wynn-Grant John McAslan Riane Eisler Cindy Venho Elizabeth Burleson Rulen Tangen Anthony Zolezzi Kevin Kamps Miles Richardson Mary Edmeades Yingling Liu Rick Steves Stacy Mitchell Dr. Cecile Rousseaux Diane Griffin David Keith Anne Biklé Danny Kennedy Mindy Lubber Twilight Greenaway Nikos Avionas Nigel Sizer Maria Mendiluce Solomon Hsiang David Rothenberg Stella Young Greta Thunberg Dumonde Slam Dunkley Tara Sheahan Edie Lush Dr. Amiera Sawas Amy Domini Agnes Pareyio Rachel Laforest Andrea Durbin Chris Anderson Ryan Hubbard Jade Begay Marije Meerman Richard Gillies Martha Conklin Amy Bowers Cordalis Jonathan F.P. 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