Biologist, Former Regional Director: US Fish & Wildlife Service

Comedian, Commentator & Journo-Activist

Sr. Director of Education, Educated Choices Program

Climate Advocate, Author & Leader of 350.org

Director, National Conservation Training Center

Founder & President, Wildroots-India

Environmentalist, Market Transformation Leader & Founder of LEED

Master Falconer, and Mr. Hoots

Sicangu Lakota

Musician; National Field Director, Public Citizen

Marine Biologist

Biologist, Environmental Historian & Writer

Natural Leader & Director of Fresh Tracks (Aspen Institute)

Chief Scientist for Climate and Land Use Change, USGS

Ecologist & Author

Environmentalist, “The Planetwalker”

Furutirs & Co-Founder, Terreform ONE nonprofit architecture & urban design

National Geographic Contributing Photographer & Photography Fellow

Biologist, President of the Amazon Biodiversity Center

Documentary Filmmaker

Lepidopterist & Author

Hip-hop Artist & Author

Historian & Author