title: A Picture Worth 250 Million Words (and Counting).
authors.forename: David
authors.initials: D
authors.lastname: Sedlak
mesh_terms: D018534:Earth, Planet; D004463:Ecology / Q000266:history*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D010506:Periodicals as Topic / Q000266:history*; D010781:Photography