JT O'Donnell

Founder & CEO of Work It Daily; HR & Recruiting Expert, Executive Coach

Naomi Oreskes

Geologist & Earth Science Historian

David Walker

Author, Respected Executive and Champion of National Fiscal Responsibility

Barton Seaver

Celebrity Chef, Author & Sustainable Food Advocate; National Geographic Fellow; Ocean Conservationist

Leslie Dewan

Co-Founder & CEO of Transatomic Power

Laurence Tribe

Carl M. Loeb University Professor at Harvard Law School & Author

Sy Montgomery

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

Secrets of the Octopus

Katie Spotz

World Record-Breaking Endurance Athlete & Safe Water Activist

Tony Juniper

Writer, Sustainability Advisor, & Environmentalist

Shel Horowitz

Green Guerrilla Marketer, National Environmental Hall of Fame, Social Activist, and Author

Moises Naim

Distinguished Fellow at the Carnegie Endowment for International Peace

Paul Solman

Business and Economics Correspondent for NewsHour; Co-Author, "Get What's Yours"

Rita Murray

First generation Irish American and Boston Baby Boomer, Rita easily entertains audiences with her Irish brogue and Yankee humor.

Angela Belcher

Materials Scientist, Biological Engineer and Professor at MIT

Amanda Palmer

Musician, New York Times Best Selling Author, Performer and Provocateur

Chris Meyer

Innovator, Business Builder, and Author on the Future of the Global Economy

Alexander A. Likhotal

President of Green Cross International & Former Adviser to Mikhail Gorbachev

Sam Waterston

Acclaimed Actor Known for His Roles in "Law & Order" & "Grace and Frankie"

Michael Lombardi

Diving Scientist, Technologist & Environmentalist

Jane Fulton Suri

Managing Partner and Co-Chief Creative Officer, IDEO