Tristram Stuart

Founder of Toast Ale, Food Waste Activist, Author

Heidi Ganahl

CEO & Entrepreneur; Founder of Camp Bow Wow, Rocky Mountain Voice, SheFactor & the Fight Back Foundation, Republican Nominee for Governor CO 2022

Lessons in Local Politics with Heidi Ganahl of the Rocky Mountain Voice

Tom Steyer

Business Leader; Philanthropist & Clean Energy Advocate; Co-Founder, NextGen America & Galvanize Climate Solutions; Author, "Cheaper, Faster, Better"; Former 2020 Presidential Candidate

Dyan deNapoli

Penguin Expert, TED Speaker & Award-Winning Author of "The Great Penguin Rescue"

George Elvin

Green Innovation Speaker & Author

Dr. Jonathan Foley

World Leading Climate Scientist & Executive Director of Project Drawdown

Victoria Stilwell

Dog Trainer & Behavior Expert; Best-Selling Author, Producer, and Host of the International Hit TV Show "It's Me or the Dog”

The Ultimate Guide to Raising a Puppy: How to Train and Care for Your New Dog

Will Allen

Pioneer in the Urban Farming Movement, Author & Founder of Growing Power

David Doubilet

National Geographic Photographer & Founding Member of the International League of Conservation Photographers

Rick Ridgeway

Environmentalist, Mountaineer, Expedition Author, Former VP of Environmental Initiatives & Special Projects at Patagonia

Filmmakers Chai Vasarhelyi & Jimmy Chin with Kris Tompkins & Rick Ridgeway in the 2023 ...

Ingrid Newkirk

Animal Rights Activist; President & Co-founder of PETA; Author of "Free the Animals"

Free the Animals 20th Anniversary Edition: The Amazing True Story of the Animal Liberat...

Heidi Cullen

Communications Director for Monterrey Bay Aquarium Research Institute; Climate Scientist

Ron Finley

Grower of a Nourishing Food Culture in South Central L.A.’s Food Desert

Philippe Cousteau

Explorer, Social Entrepreneur & Environmental Advocate; Grandson of Captain Jacques-Yves Cousteau

Shaun Tomson

Former World Surfing Champion, Leadership Expert, Environmental Activist

David Suzuki

Environmental Advocate, TV Host, Professor Emeritus

Mary Steenburgen

Character Actress; Best Known for her Role in "Philadelphia"

Matthew Modine

Actor; Director; Producer & Environmental Advocate

HARD MILES Trailer | Matthew Modine

Cesar Millan

Dog Behavior Specialist; Host of "The Dog Whisperer" & Author of "Cesar's Way"

Interview with Cesar Millan

Moby

Prolific Dance Musician, Producer, and Animal Activist

Porcelain: A Memoir