David Gessner

Essayist, Memoirist, Nature Writer, Editor and Cartoonist; Known for "All The Wild That Remains"

James Gustave Speth

Environmental Lawyer and Advocate

Andrew Hoffman

Holcim (US) Professor of Sustainable Enterprise at the University of Michigan

Tony Juniper

Writer, Sustainability Advisor, & Environmentalist

Nancy J. Zavada

Founder of MeetGreen, Author

Erin Schrode

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

Daniel Kenning

Sustainability - Transition - Engineering. Founder: Splendid Engineering, Co-Founder: Global Association for Transition Engineering

Julie Guthman

Author & Professor of Social Sciences at the University of California, Santa Cruz

Erica Mackie

Co-Founder of Grid Alternatives

Alysia Reiner

Actor, Activist & Entrepreneur

Steve LeVine

Writer at The Electric; Expert on Batteries, Electric Vehicles, and their Impact on Society, Cities & Geopolitics

Sy Montgomery

Naturalist, Adventurer & Author of "The Good Good Pig" & "The Soul of an Octopus"

Secrets of the Octopus

Lea Ann Mallett

Speaker, activist, writer, photographer, midlife momma

Achenyo Idachaba

Head of MitiMeth, A Nigeria-Based Environmentally Aware Production Company

Michael Shellenberger

Founder & President of Environmental Progress; Expert on Energy, Climate, Security, Human Development and Politics

Topher White

Founder and CEO, Rainforest Connection

Rebecca Solnit

Writer, Historian & Activist

Dr. Eric Scerri

UCLA Chemist, Author, Educator, Historian and Philosopher of Science

Dannel Malloy

Governor of Connecticut

Paul Walden Hansen

Regional Director, The Concord Coalition