Alcatraz Island 6, 2008, the Alcatraz Island Global Peace Center Proposition C failed to pass, with 72% of voters rejecting the proposition. The coastal environment of the San Francisco Bay Area has caused deterioration and corrosion of building materials throughout Alcatraz. Beginning in 2011, the National Park Service began major renovations on the island, including the installation of solar panels on the cell house roof, slope stabilization near the Warden's House and the stabilization and rehabilitation of the outer cell house walls. Recently, Alcatraz has been home to several art installations. The Chinese artist/dissident Ai Weiwei staged an exhibition which explored "questions
June 1962 Alcatraz escape attempt to death by guards because he wouldn't help investigators locate his brothers. A 2014 study of the ocean currents by scientists at Delft University and the research institute Deltares indicates that if the prisoners left Alcatraz at 11:30 pm on June 11, they could have made it to Horseshoe Bay just north of the Golden Gate Bridge, and that any debris that were released into the bay would have floated into the direction of Angel Island, consistent with where the paddle and belongings of the prisoners' was actually found. A 2015 History Channel documentary presented further circumstantial evidence gathered over