Acting
Nude on the Moon
1961 · Dr. Jeff Huntley
Mother: Caring for 7 Billion
2011 · Himself (Earth Policy Institute)
Climate Refugees
2010 · Self
Woodstock 5 Stelle
2010 · Lester Brown
Plan B
2011 · Himself
Blind Spot
2008 · Himself
Normal Is Over: The Movie 1.1
2019 · Professor Agricultural Economy, Author
