Development and disintegration of Maya political systems in response to climate change. - Kennett DJ; Breitenbach SF; Aquino VV; Asmerom Y; Awe J; Baldini JU; Bartlein P; Culleton BJ; Ebert C; Jazwa C; Macri MJ; Marwan N; et al. (Science (New York, N.Y.), 2012)