Michael Chang

Retired Tennis Star & International Tennis Hall of Famer; Won the French Open at age 17; Author of "Holding Serve"

Erin Schrode

Expert Advocate for Health, Sustainability & Environmental Education; Named "America's Green Girl" by OK Magazine

Christine Ervin

Former US Assistant Secretary of Energy; National Leader on Green Buildings & Clean Energy

Daniella Alonso

Television Actress and Model; Known for "Friday Night Lights"

Stefan Swanepoel

Corporate/Motivational Keynote Speaker & New York Times Bestselling Author of 24 Books

Sheila Watt-Cloutier

Environmental, Cultural & Human Rights Advocate, Former Canadian President of the Inuit Circumpolar Council

Jackson Galaxy

Host, "My Cat from Hell" & Author, "Cat Daddy: What the World's Most Incorrigible Cat Taught Me About Life, Love, and Coming Clean"

Alexis Nikole Nelson

Wild Food Maker at BlackForager; TikTok Sensation

Tony Juniper

Writer, Sustainability Advisor, & Environmentalist

Dina Manzo

Event Planner; Interior Designer; Cast Member of The Real Housewives of New Jersey

Joel Sartore

National Geographic Photographer & Author

Michael Nash

Film & Television Director; Best Known for "Climate Refugees"

Brian Hare

Co-founder of Dognition & Associate Professor of Evolutionary Anthropology at Duke University, Author of "The Genius of Dogs"

Valery Ortiz

Actress, Known for "South of Nowhere"

Dr. Rae Wynn-Grant

Conservation Scientist, Large Carnivore Ecologist, Nature Storyteller & Advocate

Wild Life: Finding My Purpose in an Untamed World

Ric O'Barry

Wildlife Activist, Author & Founder of the Dolphin Project; Star of the Academy Award-Winning Documentary "The Cove"

Eric Goode

Entrepreneur, Conservationist, CEO of The Turtle Conservancy & Director of Netflix's "Tiger King"

Kristin Bauer van Straten

Best known as Pam on HBO's "True Blood"

Cornelia Guest

Cornelia Guest is daughter of American fashion icon CZ Guest and polo champion Winston Frederick Churchill Guest, she's a New York socialite, author, businesswoman, and philanthropist.

Ronan Donovan

National Geographic Storytelling Fellow at the National Geographic Society

National Geographic's Ronan Donovan | Deloitte Digital