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Latest Climate of the Arctic Stories

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2007-11-13 15:20:00

PASADENA, Calif. "“ A team of NASA and university scientists has detected an ongoing reversal in Arctic Ocean circulation triggered by atmospheric circulation changes that vary on decade-long time scales. The results suggest not all the large changes seen in Arctic climate in recent years are a result of long-term trends associated with global warming. The team, led by James Morison of the University of Washington's Polar Science Center Applied Physics Laboratory, Seattle, used data...

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2007-10-01 15:25:00

PASADENA, Calif. - A new NASA-led study found a 23-percent loss in the extent of the Arctic's thick, year-round sea ice cover during the past two winters. This drastic reduction of perennial winter sea ice is the primary cause of this summer's fastest-ever sea ice retreat on record and subsequent smallest-ever extent of total Arctic coverage. A team led by Son Nghiem of NASA's Jet Propulsion Laboratory, Pasadena, Calif., studied trends in Arctic perennial ice cover by combining data from...

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2007-08-18 09:20:00

WASHINGTON -- There was less sea ice in the Arctic on Friday than ever before on record, and the melting is continuing, the National Snow and Ice Data Center reported. "Today is a historic day," said Mark Serreze, a senior research scientist at the center. "This is the least sea ice we've ever seen in the satellite record and we have another month left to go in the melt season this year." Satellite measurements showed 2.02 million square miles of ice in the Arctic, falling below the Sept. 21,...

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2007-05-29 09:32:53

In 2006, Greenland experienced more days of melting snow and at higher altitudes than average over the past 18 years, according to a new NASA-funded project using satellite observations. Daily satellite observations have shown snow melting on Greenland's ice sheet over an increased number of days. The resulting data help scientists understand better the speed of glacier flow, how much water will pour from the ice sheet into the surrounding ocean and how much of the sun's radiation will...

e8ba9f0d93e1bd439116d3c9dce9a26c1
2007-05-09 15:00:42

A new study by NASA scientists suggests that greenhouse-gas warming may raise average summer temperatures in the eastern United States nearly 10 degrees Fahrenheit by the 2080s. "There is the potential for extremely hot summertime temperatures in the future, especially during summers with less-than-average frequent rainfall," said lead author Barry Lynn of NASA's Goddard Institute for Space Studies and Columbia University, New York. The research found that eastern U.S. summer daily high...

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2007-04-03 15:02:03

A new NASA study has found that in 2005 the Arctic replaced very little of the thick sea ice it normally loses and replenishes each year. Replenishment of this thick, perennial sea ice each year is essential to the maintenance and stability of the Arctic summer ice cover. The findings complement a NASA study released in fall 2006 that found a 14-percent drop in this perennial ice between 2004 and 2005. The lack of replenishment suggests that the decline may continue in the near future....

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2006-04-11 16:49:56

WASHINGTON -- It's becoming harder to find the right snow to build an igloo, and melting permafrost is turning land into mud. With climate change the nature of the Arctic is changing, too, in ways that worry the people who live there. The Smithsonian's National Museum of Natural History opens a pair of exhibits on Saturday: "Arctic: A Friend Acting Strangely," and "Atmosphere: Change is in the Air," discussing what is happening to the climate and how it affects people living in the planet's...

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2006-03-23 13:40:00

Arizona -- The Earth's warming temperatures are on track to melt the Greenland and Antarctic ice sheets sooner than previously thought and ultimately lead to a global sea level rise of at least 20 feet, according to new research. If the current warming trends continue, by 2100 the Earth will likely be at least 4 degrees Fahrenheit warmer than present, with the Arctic at least as warm as it was nearly 130,000 years ago. At that time, significant portions of the Greenland and Antarctic Ice...

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2006-03-10 03:55:00

NASA -- If you live somewhere in the northern hemisphere between Jacksonville, Florida and Juneau, Alaska or in the southern hemisphere between Porto Alegre in Southern Brazil and Tierra del Fuego, in southern Argentina, you may have noticed that since 1965, there are less rainy and snowy days. You may have also noticed that when storms do come by they bring more rain or snow than they used to in the past. Both of those observations have been proven to be true. What you may not know, though,...

2005-12-07 00:20:00

By David Fogarty MONTREAL -- On the surface, polar bears and coral atolls don't have much in common but when it comes to global warming they have plenty to link them. Rising seas and more frequent and severe storms are threatening the livelihoods of indigenous groups in the Arctic and small tropical island states, forcing some communities to relocate while driving up business costs and threatening tourism. "These are the two most vulnerable regions to climate change," said Sheila...


Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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