"His environmental actions have earned the outspoken activist honors from environmental organizations such as Rainforest Action Network, PETA, the American Oceans Campaign and the Colorado Hemp Initiative Project. Most recently, Woody was among a handful of notable and highly influential environmentalists to be recognized at the 6th Annual Green Cross Millennium Awards sponsored by Global Green USA.
"Woody received the Entertainment Industry Environmental Leadership Award at this event. Former Soviet leader Mikhail Gorbachev, founder and president of Green Cross International, was present to honor the environmental leaders." 
Harrelson is a raw food activist.
- Global Green Millennium Awards (2002)
- Advisory Board, Surfrider Foundation 
- Advisory Board, National Organization for the Reform of Marijuana Laws 
- David Gorski, "Simply Raw: Making overcooked claims about raw food diets", sciencebasedmedicine, January 17, 2011. (see Gabriel Cousens)