News tagged with ocean
Thawing permafrost 50 million years ago led to extreme global warming events
In a new study reported in Nature, climate scientist Rob DeConto of the University of Massachusetts Amherst and colleagues elsewhere propose a simple new mechanism to explain the source of carbon that fed a ...
Space & Earth / Earth Sciences
Apr 04, 2012 |
4.3 / 5 (28) |
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Present ocean acidification rates are unprecedented: research
The world's oceans may be turning acidic faster today from human carbon emissions than they did during four major extinctions in the last 300 million years, when natural pulses of carbon sent global temperatures ...
Mar 01, 2012 |
4.3 / 5 (25) |
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Scientist suggests life began in freshwater pond, not the ocean
(PhysOrg.com) -- For most everyone alive today, it's almost a fundamental fact. Life began in the ocean and evolved into all of the different organisms that exist today. The idea that this could be wrong causes ...
Space & Earth / Earth Sciences
Feb 14, 2012 |
4.5 / 5 (22) |
41
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Why are there so few fish in the Earth's oceans?
(PhysOrg.com) -- A Stony Brook University researcher has found that, contrary to popular belief, there are not plenty of fish in the sea.
Feb 08, 2012 |
4.3 / 5 (22) |
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Great Unconformity: Evidence for a geologic trigger of the Cambrian explosion
(Phys.org) -- The oceans teemed with life 600 million years ago, but the simple, soft-bodied creatures would have been hardly recognizable as the ancestors of nearly all animals on Earth today.
Space & Earth / Earth Sciences
Apr 18, 2012 |
4.8 / 5 (19) |
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Study finds thickest parts of Arctic ice cap melting faster
A new NASA study revealed that the oldest and thickest Arctic sea ice is disappearing at a faster rate than the younger and thinner ice at the edges of the Arctic Ocean's floating ice cap.
Space & Earth / Earth Sciences
Feb 29, 2012 |
4 / 5 (22) |
108
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Start of 2012, March shatter US heat records
(AP) -- It has been so warm in the United States this year, especially in March, that national records were not just broken, they were deep-fried.
Apr 09, 2012 |
4.8 / 5 (17) |
151
Atmospheric warming altering ocean salinity
The warming climate is altering the saltiness of the world's oceans, and the computer models scientists have been using to measure the effects are underestimating changes to the global water cycle, a group ...
Space & Earth / Earth Sciences
Apr 27, 2012 |
3.8 / 5 (21) |
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Putting an airplane on a distant moon
(PhysOrg.com) -- In addition to its rivers, oceans, mountains, sand dunes and winds, Saturn’s moon Titan may someday share another similarity with Earth: airplanes.
Space & Earth / Space Exploration
Jan 25, 2012 |
4.9 / 5 (15) |
24
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Bacteria alive (more or less) in 86-million-year-old seabed clay
(Phys.org) -- A new study by scientists from Denmark and Germany has found live bacteria trapped in red clay deposited on the ocean floor some 86 million years ago. The bacteria use miniscule amounts of oxygen ...
May 18, 2012 |
4.5 / 5 (15) |
10
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Earth's past is warning for the future
When the Earth’s carbon dioxide level increased at a rapid rate during the Triassic-Jurassic period 200 million years ago, nearly half the ocean’s marine life became extinct. USC Dornsife geologists ...
Space & Earth / Earth Sciences
Mar 07, 2012 |
4.3 / 5 (15) |
51
New study links dust to increased glacier melting, ocean productivity
A University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science-led study shows a link between large dust storms on Iceland and glacial melting. The dust is both accelerating glacial melting ...
Space & Earth / Earth Sciences
Mar 01, 2012 |
4.7 / 5 (13) |
4
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Nasa study solves case of Earth's 'missing energy'
(PhysOrg.com) -- Two years ago, scientists at the National Center for Atmospheric Research in Boulder, Colo., released a study claiming that inconsistencies between satellite observations of Earth's heat and ...
Space & Earth / Earth Sciences
Jan 30, 2012 |
4.1 / 5 (14) |
12
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Amasia: As next supercontinent forms, Arctic Ocean, Caribbean will vanish first
(PhysOrg.com) -- Geologists at Yale University have proposed a new theory to describe the formation of supercontinents, the epic process by which Earth’s major continental blocks combine into a single ...
Space & Earth / Earth Sciences
Feb 08, 2012 |
4.1 / 5 (14) |
13
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Biggest solar storm in years races toward Earth (Update 2)
The largest solar storm in five years was due to arrive on Earth early Thursday, promising to shake the globe's magnetic field while expanding the Northern Lights.
Space & Earth / Space Exploration
Mar 07, 2012 |
3.9 / 5 (14) |
4
Ocean
An ocean (from Greek Ωκεανός, Okeanos (Oceanus)) is a major body of saline water, and a principal component of the hydrosphere. Approximately 71% of the Earth's surface (an area of some 361 million square kilometers) is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas. More than half of this area is over 3,000 meters (9,800 ft) deep. Average oceanic salinity is around 35 parts per thousand (ppt) (3.5%), and nearly all seawater has a salinity in the range of 30 to 38 ppt.
For more information about Ocean, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
