Leonardo DiCaprio |
Himself - Narrator |
Kenny Ausubel |
Himself - Founder, Bioneers |
Thom Hartmann |
Himself - Author, The Last Hours of Ancient Sunlig |
Wangari Maathai |
Herself - Founder, Greenbelt Movement, 2004 Nobel |
Sandra Postel |
Herself - Director, Global Water Policy Project |
Paul Stamets |
Himself - Mycologist, Author, Mycelium Running |
David Orr |
Himself - Chair, Environmental Studies Program, Ob |
Stephen Hawking |
Himself - Lucasian Professor of Mathematics, Cambr |
Oren Lyons |
Himself - Faithkeeper, Turtle Clan, Onondaga Natio |
Andrew C. Revkin |
Himself - Author & Science Reporter, New York Time |
Sylvia Earle |
Herself - Oceanographer, Explorer-in-Residence, Na |
Paul Hawken |
Himself - Author, Environmentalist, Entrepreneur |