Atlas of the Oceans Author:John Pernetta Oceans comprise 72 percent of Earth’s surface, provide food, regulate the climate, and supply mineral sources. Oceans make life possible. Discover this wondrous beauty through captivating color photos, diagrams, and maps. Discover undersea volcanoes, hydrothermal vents, shifting coastlines, and thunder clouds. Plus: an encyclopedia of mari... more »ne life, with a list of threatened species.« less