Jacqueline Novogratz

Founder & CEO of Acumen Fund

Alex Honnold

"Free Solo" Professional Rock Climber, Environmental Advocate & Host of the "Climbing Gold" Podcast

My Favorite Rock Climber - Alex Honnold | Tosh Show

Jessica Alba

Actress, Entrepreneur, Founder & Former Chief Creative Officer of The Honest Company; Co-Host of "Honest Renovations" & Bestselling Author of "The Honest Life"

Blake Mycoskie

Founder of TOMS, Social Entrepreneur & Author of NY Times Bestseller "Start Something That Matters"

William McDonough

Sustainable Design Innovator, Circular Economy Pioneer, Architect

Michael Liebreich

Chairman & CEO of Liebreich Associates; Senior Contributor, Bloomberg New Energy Finance; Authority on Clean Energy, Transportation, Climate Finance & Sustainable Development

Josette Sheeran

President and CEO of the Asia Society; Former Vice Chairman of the World Economic Forum.

Peter Zeihan

Energy & Geopolitical Strategist, Author of "The Absent Superpower" & "The Accidental Superpower"

Alanis Morissette

Mental Health & Eating Disorder Advocate; Grammy-Winning Alt-Rock Angst Singer-Songwriter; Known for "You Oughta Know" & "Ironic"

Alanis Morissette Talks 'Jagged Little Pill' and Joan Jett

Ellen MacArthur

Former Long-Distance Yachtswoman & Founder of the Ellen MacArthur Foundation

Gisele Bündchen

Supermodel, Philanthropist & United Nations Environment Program Goodwill Ambassador; Founder of the Luz Foundation & Luz Alliance Fund

Marcus Lemonis

Serial Entrepreneur, Investor and Leadership Expert; Chairman and CEO of Camping World; Star of CNBC 'The Profit', 'Streets of Dreams' and HGTV's 'The Renovator'; Philanthropist and Founder of The Lemon-AID Foundation

Arnold Schwarzenegger

World-Champion Bodybuilder, Hollywood Actor, Former Governor of California

Arnold Schwarzenegger Takes The Colbert Questionert

Imogen Heap

Grammy-winning Composer, Music Technologist, Multi-instrumentalist

Tony Fadell

Co-Creator of the iPod & iPhone; Founder and Former CEO, Nest Labs; Bestselling Author of "Build"; Principal of Build Collective

The first secret of great design | Tony Fadell | TED

Richard Thaler

Professor of Behavioral Science and Economics at the University of Chicago; Author of "Misbehaving: The Making of Behavioral Economics"

Caroline Blazovsky

America’s Healthy Home Expert, Media Personality, CEO/Founder of My Healthy Home, Environmental Consultant & Entrepreneur

Stella McCartney

Fashion Designer, Founder, Stella McCartney