Marty Metro

Founder & CEO of UsedCardboardBoxes and UCBZeroWaste

Mikko Hypponen

Computer Security Expert; Chief Research Officer at WithSecure & Principal Research Advisor at F-Secure

If It's Smart, It's Vulnerable

William McDonough

Renowned Architectural Designer, Advisor & Co-Author of "Cradle to Cradle + The Upcycle"

Sebastian Copeland

Adventurer, Environmental Activist, Award-Winning Photographer, Author, Lecturer & Founder of the Sedna Foundation

Andrew Cohen

Founder, EnlightenNext

Daniel Pauly

Daniel Pauly is the principal investigator at the Sea Around Us Project, which studies the impact of the world's fisheries on marine ecosystems. The software he's helped develop is used around the world to model and track the ocean.

Julia Bacha

Award-Winning Documentary Filmmaker, Creative Director at Just Vision

Aisha Williams

Founder & CEO of ImpactVest, Nasdaq ESG Expert Contributor & External ESG Expert at EU Commission

Thimali Kodikara

Climate Storyteller; Host of "Mothers Of Invention" Podcast

Daphne Frias

Climate Change, Disability & Environmental Activist

Alex Honnold

Professional Rock Climber & Star of the Academy-Award Winning Documentary "Free Solo"

Ian Somerhalder

Actor Known for "The Vampire Diaries"; Animal & Environmental Advocate; Founder of The Ian Somerhalder Foundation

Willie Nelson

Country Music Singer-Songwriter Known for "On The Road Again" & "Always On My Mind"

Ted Turner

Media Mogul & Philanthropist

Bernadette Beck

Founder & CEO of Kindle Coffee & 1 for 1 Foundation; Actress & Journalist Known for "Riverdale"

Kevin Surace

Internationally Recognized Futurist & Visionary on Disruptive Innovation, AI & the Age of Automation

Rick Ridgeway

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

Lawrence Summers

Professor & Former President of Harvard University; Former Secretary of the Treasury, Director of the National Economic Council, & Chief Economist of the World Bank

Mimi Crume Sterling

Communications, ESG & CSR Executive; Non-Profit CEO; Impact Advisor; Board Member

Jae Rhim Lee

Artist and TED Fellow Jae Rhim Lee Re-Imagines the Relationships Between the Body and the World

Bill Drayton

Social Entrepreneur, Founder & C.E.O of Ashoka. Leading an Everyone a Changemaker world movement.

Rebecca MacKinnon

Founding Director of Ranking Digital Rights

Caroline Casey

Founder of Kanchi & The Ability Awards

Spencer Wells

Geneticist, Anthropologist, Author, Entrepreneur, Adjunct professor at the University of Texas at Austin

Rory Stewart

Foreign Affairs & Human Rights Expert

Rory Stewart | TEDxBath

David Doubilet

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

Erik Kobayashi-Solomon

Specialist in Climate Change Investing, Corporate Valuation, Financial Options & Behavioral Biases in Investing, Published Author & Former Morningstar Market Strategist

Peter Orszag

Economist, Chief Executive Officer of Lazard & Former Director of the Office of Management and Budget in the Obama Administration

Amy Brenneman

Actress, perhaps best known for her roles on "NYPD Blue," "Judging Amy," and "Private Practice"

An Phung

Multimedia Journalist