Sea ice
hideSea ice is formed from ocean water that freezes. Because the oceans consist of saltwater, this occurs at about -1.8 °C (28.8 °F).
Sea ice may be contrasted with icebergs, which are chunks of ice shelves or glaciers that calve into the ocean. Icebergs are compacted snow and hence fresh water.
Sea ice may be deliberately created or manipulated, see Arctic geoengineering for details.
For more information about Sea ice, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with sea ice
Cave study links climate change to California droughts
Space & Earth / Earth Sciences
Nov 10, 2009 |
4.3 / 5 (6) |
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California experienced centuries-long droughts in the past 20,000 years that coincided with the thawing of ice caps in the Arctic, according to a new study by UC Davis doctoral student Jessica Oster and geology professor ...
Feds designate polar bear habitat in Alaska
Oct 22, 2009 |
2.5 / 5 (6) |
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(AP) -- The Obama administration said Thursday it is designating more than 200,000 square miles in Alaska and off its coast as "critical habitat" for polar bears, an action that could add restrictions to ...
NASA flies to Antarctica for largest airborne polar ice survey
Space & Earth / Earth Sciences
Oct 08, 2009 |
5 / 5 (2) |
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NASA begins a series of flights Oct. 15 to study changes to Antarctica's sea ice, glaciers and ice sheets. The flights are part of Operation Ice Bridge, a six-year campaign that is the largest airborne survey ever made of ...
Last time carbon dioxide levels were this high: 15 million years ago, scientists report
Space & Earth / Earth Sciences
Oct 08, 2009 |
3.6 / 5 (63) |
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You would have to go back at least 15 million years to find carbon dioxide levels on Earth as high as they are today, a UCLA scientist and colleagues report Oct. 8 in the online edition of the journal Science.
Arctic sea ice recovers slightly in 2009, remains on downward trend (w/ Video)
Space & Earth / Earth Sciences
Oct 06, 2009 |
2.4 / 5 (14) |
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(PhysOrg.com) -- Despite a slight recovery in summer Arctic sea ice in 2009 from record-setting low years in 2007 and 2008, the sea ice extent remains significantly below previous years and remains on a trend ...
Feds to decide on listing ice seals as threatened
Sep 28, 2009 |
5 / 5 (1) |
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(AP) -- A federal agency must decide within three weeks whether spotted seals, which depend on sea ice off Alaska's coast, should be listed as a threatened or endangered species.
Planned emission cuts still mean far hotter Earth
Sep 24, 2009 |
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(AP) -- Earth's temperature is likely to jump nearly 6 degrees between now and the end of the century even if every country cuts greenhouse gas emissions as proposed, according to a United Nations update.
Arctic ice pack at third lowest extent since 1979: US
Space & Earth / Earth Sciences
Sep 18, 2009 |
2.4 / 5 (5) |
9
The Arctic sea ice pack thawed to its third smallest size on record during the northern hemisphere summer of 2009, US government scientists said, citing satellite images.
Understand the Arctic before exploiting it
Sep 18, 2009 |
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America's Arctic has long been a place of myth and dream, where the Inupiat Eskimos have thrived, explorers endured and artists found inspiration. While competing visions of the Arctic have clashed in the past, we are now ...
Carcasses of dead walruses spotted on Alaska coast
Sep 17, 2009 |
5 / 5 (1) |
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(AP) -- Up to 200 dead walruses have been spotted on the shore of Chukchi Sea on Alaska's northwest coast.
Arctic sea ice reaches minimum extent for 2009, third lowest ever recorded
Space & Earth / Earth Sciences
Sep 17, 2009 |
2.8 / 5 (8) |
1
The Arctic sea ice cover appears to have reached its minimum extent for the year, the third-lowest recorded since satellites began measuring sea ice extent in 1979, according to the University of Colorado at Boulder's National ...
CU-Boulder Unmanned Aircraft Buzz Over Gigantic Holes in Antarctic Sea Ice
Space & Earth / Earth Sciences
Sep 10, 2009 |
2 / 5 (2) |
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A series of record-setting unmanned research flights are providing University of Colorado at Boulder researchers with some of the first 3-D observations of gaping holes in the Antarctic sea ice known as polynyas ...
Dramatic biological responses to global warming in the Arctic
Sep 10, 2009 |
3 / 5 (16) |
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"The Arctic as we know it may soon be a thing of the past," says Eric Post, associate professor of biology at Penn State University. Post leads a large, international team that carried out ecosystem-wide ...
Walruses congregate on Alaska shore as ice melts
Sep 09, 2009 |
3.7 / 5 (3) |
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(AP) -- Thousands of walruses are congregating on Alaska's northwest coast, a sign that their Arctic sea ice environment has been altered by climate change.
What's Holding Antarctic Sea Ice Back From Melting?
Space & Earth / Earth Sciences
Sep 02, 2009 |
3.1 / 5 (9) |
1
(PhysOrg.com) -- Global temperatures are increasing. Sea levels are rising. Ice sheets in many areas of the world are retreating. Yet there’s something peculiar going on in the oceans around Antarctica: even ...
