New Nat Geo Atlas: 11 Pounds of Maps of Earth, the Oceans, Mars and the Moon - Juan Valdes

National Geographic has been a long respected source of geographic knowledge. And the National Geographic Atlas, 10th Edition builds on that long standing tradition of mapmaking. The voluminous atlas contains 360 maps, 56 photographs and 300 diagrams, of the earth's land, ocean floors, the moon and Mars. Juan Valdes, National Geographic Maps' Director of Editorial and Research explains that, despite the changing climate, the world's coastlines haven't changed enough for it to be reflected much in the 10th Edition, but that the most noticeable impact is on the amount of multiyear ice in the Arctic.