Ocean smoothly into oceans of supercritical hydrogen. The atmosphere of Venus is 96.5% carbon dioxide, which is a supercritical fluid at its surface. On other bodies: Ocean An ocean () is a body of saline water that composes much of a planet's hydrosphere. On Earth, an ocean is one of the major conventional divisions of the World Ocean. These are, in descending order by area, the Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic Oceans. The word "ocean" is often used interchangeably with "sea" in American English. Strictly speaking, a "sea" is a body of saline water (generally a division of the
Strange Days on Planet Earth the global issues acing the ocean, under the name Strange Days Ocean. The series earned 14 major film festival honors, including Strange Days on Planet Earth Strange Days on Planet Earth is a four-part (1 hour each) television program on PBS concerning human impact on the environment. It is narrated by Edward Norton. The show was produced by Sea Studios Foundation. Strange Days on Planet Earth grew into an ongoing partnership with the National Geographic Society to bring focus on our personal connection to the planet’s life systems. The series were broadcast on PBS to over 12 million viewers in