Asmeret Asefaw Berhe

Biogeochemist, Political Ecologist & Associate Professor at the University of California Merced

Jen Rustemeyer

Producer and Filmmaker

Bindi Irwin

Wildlife Conservationist & Daughter of Steve Irwin; Season 21 Contestant on "Dancing With the Stars"

Jay Weinstein

Chef and journalist; Author of The Ethical Gourmet, a guide to finding and cooking environmentally friendly and ethically produced foods

Tensie Whelan

Director of NYU's Center for Sustainable Business; Former President of the Rainforest Alliance

Annie Leonard

American Proponent of Sustainability and a Critic of Excessive Consumerism

Cassandra Moseley

Director of the Ecosystem Workforce Program in the Institute for a Sustainable Environment at the University of Oregon

Sophia Bush

Actress, Humanitarian & Author

Laura Stachel, M.D., M.P.H

Co-Founder of WE CARE Solar, a Company that Fights to Combat High Maternal Mortality Rates in Developing Countries

Lynn Jurich

Co-Founder & CEO of SunRun

Olivia Munn

Television & Film Actress; Known for "Newsroom" & "X-Men: Apocalypse"

Olivia Munn on Jon Stewart | 2022 Mark Twain Prize

Amy Smart

Actress, Environmentalist & Co-Founder of Smart House Collections

Shailene Woodley

Actress & Environmental Activist

Cate Blanchett

Academy Award-Winning Actress Known for "Elizabeth" & "The Aviator;" Ambassador for the Australian Conservation Foundation

Alexandra Cousteau

Environmental Activist, Storyteller & Ocean Advocate

Emmanuelle Chriqui

Actress Known for "Entourage;" Social Advocate for Colon Cancer, Environmental Issues & Human Rights in Congo

Sheryl Crow

Grammy Award-Winning Singer-Songwriter

Karina Smirnoff

Professional Dancer on "Dancing with the Stars" & Author of "We're Just Not That Into You: Dating Disasters from the Trenches"

Alyssa Milano

Actress, Author, Philanthropist & Founder of Touch by Alyssa Milano; Known for "Charmed" and "Who's the Boss"

Gisele Bundchen

Supermodel, Philanthropist & United Nations Environment Program Goodwill Ambassador

Daphne Frias

Climate Change, Disability & Environmental Activist

Brenda Mallory

Nominee for the Position of Chairperson of the Council on Environmental Quality in the Biden Administration

Darin Olien

Co-Host of Netflix "Down To Earth" with Zac Efron, Best-Selling; Original Formulator of "Shakeology;" Healthy Living & Superfoods Expert

Vanessa Nakate

Ugandan Climate Justice Activist; Founder of Youth for Future Africa

Renee Lertzman

Expert on the Intersection of Climate Change & Psychology; Author of "Environmental Melancholia"

Jamie Margolin

Climate Change Activist; Author; Founder & Co-Executive Director of Youth-Led Climate Action Group "Zero Hour"

Eva Mackinley

Founder of The Last Straw Australia; Working to Prevent Waste & Protect the Environment

Amy Harder

Climate Change Journalist & Executive Editor of Cipher by Breakthrough Energy

Ellie Symes

Founder & CEO of The Bee Corp

Melissa Lee

Founder, CEO at The GREEN Program