Tom Steyer

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

Temple Grandin

World-Famous Animal Scientist, Autism Advocate & Author of "Thinking in Pictures: My Life With Autism"

Keynote: Dr. Temple Grandin - YouTube

Nick Jans

Best-Selling Author and Nature Photographer; Known for "A Wolf Called Romeo"

Animal Writes - A Wolf Called Romeo with Nick Jans

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

Sangita Iyer

Multiple Award-Winning Nature & Wildlife Filmmaker, Broadcast Journalist, National Geographic Explorer & Author of "Gods in Shackles"

Jan Schlichtmann

Environmental Lawyer & Author; Subject of the Book & Film "A Civil Action"

Environmental and Civil Justice Attorney Jan Schlichtmann to present SIU Lesar Lecture

Jon Katz

Bestselling Author, Former TV Producer, Animal Welfare Advocate

Chelsea Miller

Leading Voice in Racial Justice; Co-Founder of Freedom March NYC

Jamie Margolin

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

As Teenagers, They Protested Trump’s Climate Policy. Now What?

Christine Amour-Levar

Social Entrepreneur, Environmental Advocate, Marketing Consultant & Author

Meg Lowman

National Geographic Explorer, Researcher, Scientist; Outdoors Enthusiast, Storyteller & Author; Forest Conservation and Sustainability Advocate

Bruce Bekkar, MD

Women’s Health Physician, Climate Activist, Speaker & Author

The climate crisis is not your fault, but it is your problem | Bruce Bekkar | TEDxNewRiver

Carl Pope

Senior Advisor to UN Envoy for Cities and Climate; Former CEO and Chairman of the Sierra Club

Winona LaDuke

Environmental Activist & Author; Climate Justice, Renewable Energy & Sustainability Advocate; Executive Director of "Honor the Earth"

Chad Pregracke

Founder of Living Lands & Waters, CNN's Hero of the Year for 2013, Environmental Speaker & Bestselling Author

Jasmine Crowe-Houston

Award-Winning Social Entrepreneur, Environmental Advocate, Founder & CEO of Sustainable Waste Management Company Goodr

Ryan Hreljac

Canadian Activist & Founder of Ryan's Well Foundation

Ryan Hreljac - CNN Heroes

Alan van Capelle

Executive Director at Friends of the High Line; Adjunct Professor of Public Service at New York University

Honoree Spotlight: Alan van Capelle

Tensie Whelan

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

Scarlett Westbrook

Climate Justice Activist