Sierra Club - CA
85 Second Street 2nd Floor
San Francisco, CA 94105
The Sierra Club, considered a Big Green environmental group member, was founded on May 28, 1892 by John Muir and other supporters. It is the oldest and largest grassroots environmental organization in the United States. The Sierra club has 1.3 million members. It is formally allied with 350.org. Executive Director Michael Brune received special permission from his board to be arrested in a celebrity civil disobedience campaign at the White House in 2013.
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