Christine Kreuder Johnson

Epidemiologist, Associate Director of The One Health Institute & Director of The EpiCenter for Disease Dynamics at UC Davis

Jonna Mazet

Vice Provost at Grand Challenges, University of California, Davis

Dr. Jonna Mazet of the Global Virome Project

Tracey Goldstein

Virologist, Associate Director of One Health Institute & Co-Principal Investigator on The PREDICT Project

Peter Daszak

President, Ecohealth Alliance. Disease Ecologist.

Henry Nicholls

Science Journalist & Author of "Sleepyhead: Narcolepsy, Neuroscience and the Search for a Good Night"

Stephanie Powers

American Film and Television Actress

Ed Begley Jr.

Environmental Activist & Emmy Award-Nominated Actor

Tony Buettner

Blue Zones National Spokesperson, Explorer & Entrepreneur

The Barbi Twins

Shane and Sia Barbi are identical twins who were propelled into a self-professed "seven minutes of fame" by strategically placed billboards, leading to record-breaking magazines and posters, culminating in world-wide press and recognition.

Ryan Matthews

U.S. Army Veteran, Dog Trainer, Author

Ben Strahan

Hotshot Crew Wildland Firefighter, Founder of Moment Consulting LLC & Suicide Survivor

RCN Podcast Episode 38: Dancing with Fire

Lena Samford

Environmentalist & Wellness Advocate

Doug Fine

Globe-Trotting Journalist, Award-Winning Climate Correspondent, Goat-Herder & Author

Celine Halioua

Founder & CEO of Loyal

Celine Halioua - Finding Genius

Alexis Nikole Nelson

Wild Food Maker at BlackForager; TikTok Sensation

Klas Bergling

Founder, Tim Bergling Foundation & Father of Avicii

Tala Dowlatshahi

Award-Winning Global Human Rights, Climate Change & Public Health Policy Expert; Former Senior Advisor for Stakeholder Engagement at the United Nations

Daphne Frias

Climate Change, Disability & Environmental Activist

Darin Olien

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

Katharine Hayhoe

Atmospheric Scientist, Professor of Political Science & Director of Climate Science Center at Texas Tech, Lead Scientist with The Nature Conservancy

Saving Us: A Climate Scientist's Case for Hope and Healing in a Divided World