We plan to information on 5 oceans in this world and may start sharing various seas soon. Any missing names should be sent to Datacentre
Oceans

Atlantic Ocean Arctic Ocean Arctic Ocean Atlantic Ocean Pacific Ocean Pacific ocean Indian ocean Southern ocean

The ocean's trillion dollar blue economy
25 Feb 2017
Can humans reverse degradation of the world's oceans with resources estimated to be worth $24 trillion?

UN deputy chief highlights benefits from and challenges confronting oceans

Hear the first audio recordings from the sea's deepest points
For the first time we have lowered a microphone into the Challenger Deep, the deepest known ocean trench. It picked up some surprising noises.
For the first time, scientists have obtained audio recordings from 7 miles (11km) below sea level in Challenger Deep, the deepest part of the Mariana Trench, south-west of Guam. They reveal a soundscape rich with the rumble of earthquakes, the deep moans of whales – and the mechanical whirr of ships.
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3.2 Millimeters: A Troubling Rise in Sea Level
Sea levels are rising, and rising faster every year.

According to the latest report of the Intergovernmental Panel on Climate Change, sea levels rose an average of 1.7 millimeters a year during the 20th century. Some areas have had larger rises than others, and measurements vary from year to year at different locations.

Measuring sea level is difficult. Scientists use tidal gauges and satellite altimeter data to measure these changes, and there are some questions about the precision of these tools. Variations in land level complicate matters further; it is often difficult to distinguish rising seas from falling land. And as water warms, it expands.

Still, there is no question about the basic facts. Since 1993, the average rate of increase has nearly doubled, to 3.2 millimeters a year.
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Why we want to cover oceans ?
We are not a science site nor are we a site on seas & oceans.

We are a development site and know that a lot of solid wste or nuclear waste is dumped in seans and oceans and it not only affects the country and its neghbouring countries but all of us. The waste which unfortunatel y contains plastic is eaten by sea animals or animals on the land on the nearby regions and it affects their life. (See Midway Islands)

Oceans
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, which occupies two-thirds of the planet's surface. These are, in descending order by area, the Pacific, Atlantic, Indian, Southern, and Arctic Oceans. The word sea is often used interchangeably with "ocean" in American English but, strictly speaking, a sea is a body of saline water (generally a division of the world ocean) partly or fully enclosed by land.

Saline water covers approximately 72% of the planet's surface (~3.6×108 km2) and is customarily divided into several principal oceans and smaller seas, with the ocean covering approximately 71% of the Earth's surface. The ocean contains 97% of the Earth's water, and oceanographers have stated that only 5% of the World Ocean has been explored. The total volume is approximately 1.3 billion cubic kilometers (310 million cu mi) with an average depth of 3,682 meters (12,080 ft).

Because it is the principal component of Earth's hydrosphere, the world ocean is integral to all known life, forms part of the carbon cycle, and influences climate and weather patterns. It is the habitat of 230,000 known species, although much of the oceans depths remain unexplored, and over two million marine species are estimated to exist. The origin of Earth's oceans remains unknown; oceans are believed to have formed in the Hadean period and may have been the impetus for the emergence of life.

Extra-terrestrial oceans may be composed of water or other elements and compounds. The only confirmed large stable bodies of extraterrestrial surface liquids are the lakes of Titan, although there is evidence for the existence of oceans elsewhere in the Solar System. Early in their geologic histories, Mars and Venus are theorized to have had large water oceans. The Mars ocean hypothesis suggests that nearly a third of the surface of Mars was once covered by water, and a runaway greenhouse effect may have boiled away the global ocean of Venus. Compounds such as salts and ammonia dissolved in water lower its freezing point, so that water might exist in large quantities in extraterrestrial environments as brine or convecting ice. Unconfirmed oceans are speculated beneath the surface of many dwarf planets and natural satellites; notably, the ocean of Europa is believed to have over twice the water volume of Earth. The Solar System's gas giant planets are also believed to possess liquid atmospheric layers of yet to be confirmed compositions. Oceans may also exist on exoplanets and exomoons, including surface oceans of liquid water within a circumstellar habitable zone. Ocean planets are a hypothetical type of planet with a surface completely covered with liquid.
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