The Sierra Club is an environmental organization in the United States. It was founded on May 28, 1892, in San Francisco, California, by the Scottish-American preservationist John Muir, who became its first president. Traditionally associated with the progressive movement, the club was one of the first large-scale environmental preservation organizations in the world, and currently engages in lobbying politicians to promote green policies. In recent years, the club has gravitated toward green politics and especially toward bright green environmentalism. Recent focuses of the club include promoting green energy, mitigating global warming, and opposing coal. In addition to political advocacy, the Sierra Club organizes outdoor recreation activities, and is a notable organization for mountaineering and rock climbing in the United States, having pioneered the Yosemite Decimal System of climbing. The Sierra Club does not set standards for or regulate alpinism, but it organizes wilderness courses, hikes, rock climbs, and alpine expeditions for members.