Sylvia Earle

Explorer-in-Residence at National Geographic & Oceanographer; Former Chief Scientist of the NOAA

Alicia Silverstone

Actress & Animal Rights Activist

Melissa Rivers

Actress, Television Host & Producer, Equestrienne, and Philanthropist; Daughter of Late Comedian Joan Rivers

Elayne Boosler

Comedian & Advocate for Animal Rescue; Founder of Tails of Joy

Paul Rosolie

Conservationist, Writer, Filmmaker, Founder of Junglekeepers, Protecting 55000+ acres of Amazonian Habitat & Wildlife

How creative & emotive communication conserved 55,000 acres of Peru’s Amazon

Alex Schulze

Co-Founder & CEO of 4ocean; Advocate for Ocean Cleanup, Conservation & Sustainability

Conversation with Alex Schulze, CEO and Co-Founder of 4ocean

Alison Victoria

Interior Designer; Host of HGTV's "Kitchen Crashers"

Steve Winter

Wildlife Photojournalist

Charlie Hamilton-James

Photographer & Wildlife Conservationalist

Shaun Tomson

Former World Champion Surfer, Environmentalist & Motivational Speaker

Alan Cumming

Emmy-Winning Actor Who Stars in "The Good Wife"

Tony Juniper

Writer, Sustainability Advisor, & Environmentalist

Bob Baffert

Legendary Triple Crown-Winning Horse Trainer

Christian Serratos

Actress, Best-known for her Role in the "The Twilight Saga" Series & "The Walking Dead"

Carlton Ward Jr.

Conservation Photographer & National Geographic Explorer; Founder of Florida Wild

Bindi Irwin

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

Daryl Hannah

Actress, Best Known for "Kill Bill" & "Splash"; Environmental Activist

Wade Boggs

National Baseball Hall of Famer, 12-Time MLB All-Star & World Series Champion; Wildlife Conservation Activist

Eric Roberts

Actor Known for his Roles in "Runaway Train," "The Dark Knight" and "Heroes"

Ronan Donovan

National Geographic Storytelling Fellow at the National Geographic Society

National Geographic's Ronan Donovan | Deloitte Digital