David Brower, American environmentalist, founder of the Sierra Club Foundation (died 2000)

David Ross Brower was a prominent environmentalist and the founder of many environmental organizations, including the John Muir Institute for Environmental Studies (1997), Friends of the Earth (1969), Earth Island Institute (1982), North Cascades Conservation Council, and Fate of the Earth Conferences. From 1952 to 1969, he served as the first Executive Director of the Sierra Club, and served on its board three times: from 1941–1953; 1983–1988; and 1995–2000 as a petition candidate enlisted by reform-activists known as the John Muir Sierrans. As a younger man, he was a prominent mountaineer.

The Sierra Club Foundation is an American nonprofit charitable organization focused on environmental efforts. It is an independent 501(c)(3) social welfare organization, the fiscal sponsor of the charitable programs of the Sierra Club. The organization's stated mission is to "help educate, inspire, and empower humanity to preserve the natural and human environment."

July 1 is the 182nd day of the year in the Gregorian calendar; 183 days remain until the end of the year.