Environmentalists from California

Ansel Easton Adams was an American landscape photographer and environmentalist known for his black-and-white images of the American West. He helped found Group f/64, an association of photographers advocating "pure" photography which favored sharp focus and the use of the full tonal range of a photograph. He and Fred Archer developed a system of image-making called the Zone System, a method of achieving a desired final print through a technical understanding of how the tonal range of an image is the result of choices made in exposure, negative development, and printing.

American environmental activist

American actor

American actress and politician (1900–1980)

Thomas Fahr Steyer is an American businessman, philanthropist, and environmentalist. He is the founder of Farallon Capital, a San Francisco-based hedge fund, as well as NextGen America, a progressive political action committee, and Galvanize Climate Solutions, a climate change-centered investment firm. A member of the Democratic Party, he unsuccessfully ran for the party's nomination in the 2020 United States presidential election.

Native American eco-anarchist and animal rights activist

American politician (1932-2017)

environmental activist

American environmentalist (1912-2000)

American politician (born 1966)

American environmentalist