Carl Pope is the former executive director of the Sierra Club, an American environmental organization founded by conservationist John Muir in 1892.
[2][3] Pope had worked with the Sierra Club for more than 30 years, and has served as a board member for other organizations, including the National Clean Air Coalition, California Common Cause, and Public Interest Economics Inc.
[5] In January 2009, Pope had announced his intention to step down from the post of executive director, effective upon the hiring of a successor.
In 2004 he published a book with Paul Rauber called Strategic Ignorance: Why the Bush Administration Is Recklessly Destroying a Century of Environmental Progress.
[8] On April 18, 2017, Pope published a book with Michael Bloomberg on titled Climate of Hope: How Cities, Businesses, and Citizens Can Save the Planet.