Pacific Ocean Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south and is bounded by Asia and Australia in the west and the Americas in the east. At in area (as defined with an Antarctic southern border), this largest division of the World Ocean—and, in turn, the hydrosphere—covers about 46% of Earth's water surface and about one-third of its total surface area, making it larger than all of Earth's land area combined. The centers of
The Day The Earth Nearly Died it is argued that the Permian extinction came in 3 stages; the first was caused by volcanic activity in the great Siberian Traps. This is proposed to have caused global warming, which in turn killed much of the life on land. Second, it warmed up the sea, which killed much of the marine life. As the sea became warmer, the ocean floor released a massive amount of methane. As the methane reached the atmosphere, the earth became even warmer, which led to the extinction of even more lifeforms on land. In the program, the extinction is argued to have lasted