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Start Over Place Earth Year 1993 Bounding Box -40.000931 39.999015 -39.999064 40.000987

1. Endangered earth

Princeton University Restricted content
1993. National Geographic Society (U.S.). Cartographic Division. Includes tex and chronological chart. Includes text, ancillary maps of "Ice age vegetation 18,000 years BP" and "Greenhouse-effect vegetation zones... Washington, D.C. : National Geographic Society, 1993.