Noam Chomsky - American linguist, philosopher, cognitive scientist, logician, political commentator and activist

Sam Polk - Former Wall Street trader and Founder of Groceryships

Dr. Helen Caldicott - Physician, activist, author, speaker

Kevin O'Leary - Venture capitalist, businessman, investor, writer, and television personality

Ian MacKenzie - Filmmaker, Media Activist

Dr. William Rees - Co-creator of the Ecological Footprint Method of analysis

Karen Elkins - Creator/Editor Science to Sage eMagazine

Rex Weyler - writer , journalist, ecologist, historian and co-founder of Greenpeace International

Charles Eisenstein - Author of 'Sacred Economics', 'The Ascent of Humanity', and 'The Yoga of Eating'

Wade Davis - anthropologist, ethnobotanist, author and Explorer in Residence at the National Geographic Society

Dr. William Davis - Physician, Author of 'Wheat Belly'

Dr. Andrew Weaver - Research Chair in Climate Modelling and Analysis at the University of Victoria. Co-winner of the 2007 Nobel Peace Prize

Tzeporah Berman - activist, environmentalist, author, Former co-director of Greenpeace International's Global Climate and Energy Program

Dr. Robert Works Fuller - physicist, author, dignitarian, social reformer

Betty Krawczyk - activist, deep ecologist, eco-feminist and grandmother