Claim: Earth Island Institute is a non-profit environmental group founded in 1982 by David Brower who was a prominent environmentalist and the founder of many environmental organizations, including the John Muir Institute..
Evidence: The Earth Island Institute is non-profit environmental group founded in 1982 by David Brower. David Ross Brower (/ˈbraʊ.ər/; July 1, 1912 – November 5, 2000) was a prominent environmentalist and the founder of many environmental organizations, including the John Muir Institute for Environmental Studies, Friends of the Earth (1969), Earth Island Institute (1982), North Cascades Conservation Council, and Fate of the Earth Conferences.