title: Paleoclimate. A variable sun and the Maya collapse.
authors.forename: R A
authors.initials: RA
authors.lastname: Kerr
mesh_terms: D001106:Archaeology; D002962:Civilization / Q000266:history*; D002980:Climate; D003468:Cultural Evolution; D004190:Disasters / Q000266:history*; D019015:Geologic Sediments / Q000032:analysis; D049690:History, Ancient; D008800:Mexico; D010507:Periodicity; D019445:Solar Activity