do so. Bates maintains numerous environmental clubs and initiative such as Green Certification, which recognizes students who commit to sustainable policies and practices, Green Bike, which offers students access to bicycles for use on and off campus for free, and the Bates Action Energy Movement in which students participate in "both on-campus and nationwide environmental events and engage students with discussions on climate change and other pressing ecological crises." The Bates College Museum of Art, offers programs such as the Green Horizons Program that showcase environmentalism in art, society, and culture. The United States Environmental Protection Agency honored Bates as a member of the Green Power Leadership Club due to the fact 96% of energy used on campus is from renewable resources. All newly developed buildings and facilities are built to LEED Silver and Gold standards. The college achieved complete carbon neutrality in 2019, as a result of campus-wide conservation efforts and specific initiatives in its implementation plan. Notable alumni Bates alumni have included leaders in science, religion, politics, the Peace Corps, medicine, law, education, communications, and business; and acclaimed actors, architects, artists, astronauts, engineers, human rights activists, inventors, musicians, philanthropists, and writers. , there are 24,000 Bates College alumni. The college is associated, through alumni and academic staff, with the following intellectual, scientific, and social contributions to human advancement, including laying the foundations of braille typography (Frank Haven Hall), "The Kingdom" (Frank Sandford), the American civil rights movement (Benjamin Mays), basketball's fast break (Frank Keaney), the Boston Red Sox (Harry Lord, Charles Small), the fractional quantum Hall effect (Steven Girvin), and organic photochemistry (George Hammond). In national and international government, alumni of the college include the 58th U.S. Secretary of State, Edmund Muskie (1936), U.S. Attorney General Robert F. Kennedy (1944), and Clerk of the Supreme Court of the United States John F. Davis (1928). As of November 2018, the college has had 12 United States Congress members among its alumni: John Swasey (1859), Daniel McGillicuddy (1881), Carroll Beedy (1903), Charles Clason (1911), Donald Partridge (1914), Edmund Muskie (1936), Frank Coffin (1940), Robert F. Kennedy (1944), Leo Ryan (1944), Bob Goodlatte (1974), Ben Cline (1994), and Jared Golden (2011). In state government, Bates alumni have led all three political branches in Maine, graduating two Chief Justices of the Maine Supreme Court, two Maine Governors, and multiple leaders of both state houses. Notable military people include Brevet Major Holman Melcher