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Latest Arctic Sea Stories

Arctic Sea Ice Extent Hits Record Low
2011-09-11 04:01:00

  The area covered by Arctic sea ice during the summer reached a new all-time low on Thursday, with the summer sea ice extent falling to 1.64 million square miles (4.24 million square kilometers), scientists from a German university reported on Friday. According to AFP reports on Saturday, the current level is approximately one-half a percent below the previous record low, which dates back to the first satellite observations in 1972. Researchers at the University of Bremen's...

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2011-08-19 07:20:52

The U.S. Geological Survey (USGS) said Thursday that it would attempt to attach 35 satellite radio-tags to walruses on the northwestern coast of Alaska as part of an ongoing study into how the mammals are responding to reduced Arctic sea ice conditions during late summer and fall. The fast-melting Arctic sea ice seems to be pushing the walruses out onto land, with many moving near the area where oil leases have been sold, the agency said. "Sea ice is an important component in the life...

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2011-08-12 05:15:00

The melting of Arctic sea ice may temporarily stabilize, and the ice may even expand, over the coming years, according to new research by scientists at the National Center for Atmospheric Research (NCAR). "As we learn more about climate variability, new and unexpected research results are coming to light," said Sarah Ruth, program director in the Division of Atmospheric and Geospace Sciences, which funds NCAR. "What's needed now are longer-term observations to better understand the effect of...

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2011-08-05 05:35:00

Danish researchers say the rate of melting in the Arctic sea may be slower than previously thought. A team from the Danish National Research Foundation for Geogenetics at the University of Copenhagen developed a method to measure the variations in the ice several millennia back in time. The scientists based their results on material gathered along the coast of northern Greenland, which experts believe will be the final place summer ice will survive. "Our studies show that there have been...

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2011-03-24 13:29:56

The 2011 Arctic sea ice extent maximum that marks the beginning of the melt season appears to be tied for the lowest ever measured by satellites, say scientists at the University of Colorado Boulder's National Snow and Ice Data Center. The CU-Boulder research team believes the lowest annual maximum ice extent of 5,650,000 square miles occurred on March 7. The maximum ice extent was 463,000 square miles below the 1979-2000 average, an area slightly larger than the states of Texas and...

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2011-01-17 06:05:00

The Northern Hemisphere's shrinking ice and snow cover is causing less and less sunlight to reflect back into space in a previously underestimated mechanism that could add to global warming, according to a new study on the subject. Satellite data indicated that Arctic sea ice, glaciers, winter snow pack and Greenland's ice were reflecting less energy back into space between 1979 and 2008. The dwindling amount of reflective energy exposes the ground and water, both of which are darker and...

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2010-02-19 07:38:04

In 2007, the Arctic lost a massive amount of thick, multiyear sea ice, contributing to that year's record-low extent of Arctic sea ice. A new NASA-led study has found that the record loss that year was due in part to the absence of "ice arches," naturally-forming, curved ice structures that span the openings between two land points. These arches block sea ice from being pushed by winds or currents through narrow passages and out of the Arctic basin. Beginning each fall, sea ice spreads across...

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2009-12-15 10:30:00

The northern coastline of Alaska midway between Point Barrow and Prudhoe Bay is eroding by up to one-third the length of a football field annually because of a "triple whammy" of declining sea ice, warming seawater and increased wave activity, according to new study led by the University of Colorado at Boulder. The conditions have led to the steady retreat of 30 to 45 feet a year of the 12-foot-high bluffs -- frozen blocks of silt and peat containing 50 to 80 percent ice -- which are toppled...

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2009-10-07 09:22:56

U.S. satellite measurements show Arctic sea ice extent in 2009 "“ the area of the Arctic Ocean covered by floating ice "“ was the third lowest since satellite measurements were first made in 1979. The ice area at minimum was an increase from the past two years, but still well below the average for the past 30 years. Arctic sea ice reached its minimum extent around September 12. According to scientists affiliated with the National Snow and Ice Data Center (NSIDC), sea ice coverage...

2009-10-06 14:24:10

Remains On Downward Trend 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 leading toward ice-free Arctic summers, according to the University of Colorado at Boulder's National Snow and Ice Data Center. According to the CU-Boulder center, the 2009 minimum sea ice extent was the third lowest since satellite record-keeping began in 1979. The past five...


Word of the Day
drawcansir
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
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