In subsequent years, Denver had a lower-profile career. He had a few more U.S. Top 30 hits as the 1970s ended, but nothing to match the success he enjoyed earlier. As his music career slowed down, Denver focused more on humanitarian and sustainability work. He worked extensively on conservation projects and helped to create the Arctic National Wildlife Refuge in Alaska.

Denver made public expression of his acquaintance or friendship with ecological-design researchers like Richard Buckminster Fuller and Amory Lovins, from whom he said he learned much. He also founded his own environmental group, the Windstar Foundation. Denver had a keen interest in the causes of and solution to hunger, and visited Africa during the 1980s to witness first-hand the suffering caused by starvation and to work with African leaders towards a solution.

Discography