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Vast expanses of Arctic ice melt in summer heat

 
NasTraDooMis
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08/09/2009 08:36 PM
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Vast expanses of Arctic ice melt in summer heat
Vast expanses of Arctic ice melt in summer heat


TUKTOYAKTUK, Northwest Territories — The Arctic Ocean has given up tens of thousands more square miles (square kilometers) of ice on Sunday in a relentless summer of melt, with scientists watching through satellite eyes for a possible record low polar ice cap.

From the barren Arctic shore of this village in Canada's far northwest, 1,500 miles (2,414 kilometers) north of Seattle, veteran observer Eddie Gruben has seen the summer ice retreating more each decade as the world has warmed. By this weekend the ice edge lay some 80 miles (128 kilometers) at sea.

"Forty years ago, it was 40 miles (64 kilometers) out," said Gruben, 89, patriarch of a local contracting business.

Global average temperatures rose 1 degree Fahrenheit (0.6 degree Celsius) in the past century, but Arctic temperatures rose twice as much or even faster, almost certainly in good part because of manmade greenhouse gases, researchers say.

In late July the mercury soared to almost 86 degrees Fahrenheit (30 degrees Celsius) in this settlement of 900 Inuvialuit, the name for western Arctic Eskimos.

"The water was really warm," Gruben said. "The kids were swimming in the ocean."

As of Thursday, the U.S. National Snow and Ice Data Center reported, the polar ice cap extended over 2.61 million square miles (6.75 million square kilometers) after having shrunk an average 41,000 square miles (106,000 square kilometers) a day in July -- equivalent to one Indiana or three Belgiums daily.

The rate of melt was similar to that of July 2007, the year when the ice cap dwindled to a record low minimum extent of 1.7 million square miles (4.3 million square kilometers) in September.

In its latest analysis, the Colorado-based NSIDC said Arctic atmospheric conditions this summer have been similar to those of the summer of 2007, including a high-pressure ridge that produced clear skies and strong melt in the Beaufort Sea, the arm of the Arctic Ocean off northern Alaska and northwestern Canada.

In July, "we saw acceleration in loss of ice," the U.S. center's Walt Meier told The Associated Press. In recent days the pace has slowed, making a record-breaking final minimum "less likely but still possible," he said.

Scientists say the makeup of the frozen polar sea has shifted significantly the past few years, as thick multiyear ice has given way as the Arctic's dominant form to thin ice that comes and goes with each winter and summer.

The past few years have "signaled a fundamental change in the character of the ice and the Arctic climate," Meier said.

Ironically, the summer melts since 2007 appear to have allowed disintegrating but still thick multiyear ice to drift this year into the relatively narrow channels of the Northwest Passage, the east-west water route through Canada's Arctic islands. Usually impassable channels had been relatively ice-free the past two summers.

"We need some warm temperatures with easterly or southeasterly winds to break up and move this ice to the north," Mark Schrader, skipper of the sailboat "Ocean Watch," e-mailed The Associated Press from the west entrance to the passage.

The steel-hulled sailboat, with scientists joining it at stops along the way, is on a 25,000-mile (40,232-kilometer), foundation-financed circumnavigation of the Americas, to view and demonstrate the impact of climate change on the continents' environments.

Environmentalists worry, for example, that the ice-dependent polar bear will struggle to survive as the Arctic cap melts. Schrader reported seeing only one bear, an animal chased from the Arctic shore of Barrow, Alaska, that "swam close to Ocean Watch on its way out to sea."

Observation satellites' remote sensors will tell researchers in September whether the polar cap diminished this summer to its smallest size on record. Then the sun will begin to slip below the horizon for several months, and temperatures plunging in the polar darkness will freeze the surface of the sea again, leaving this and other Arctic coastlines in the grip of ice. Most of the sea ice will be new, thinner and weaker annual formations, however.

At a global conference last March in Copenhagen, scientists declared that climate change is occurring faster than had been anticipated, citing the fast-dying Arctic cap as one example. A month later, the U.S. National Oceanic and Atmospheric Administration predicted Arctic summers could be almost ice-free within 30 years, not at the century's end as earlier predicted.

[link to www.comcast.net]

hiding
Anonymous Coward
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08/09/2009 08:37 PM
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Re: Vast expanses of Arctic ice melt in summer heat
And yet there are still yahoos out there that believe it's a hoax.
Vote for chains

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08/09/2009 08:40 PM
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Re: Vast expanses of Arctic ice melt in summer heat
So Earths tempertures are going back to normal after 1000 years of unusually cold weather. GOOD!
The end is near,everyone knows.
neteru<>

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Canada
08/09/2009 08:42 PM
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Re: Vast expanses of Arctic ice melt in summer heat
ice melting due to heat?! who would have thought?
We have finally come back to the pre-Socratic philosopher Heraclitus, who said everything is flow, flux, process. There are no "things." Bruce Lee
LEO-

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Finland
08/09/2009 08:45 PM
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Re: Vast expanses of Arctic ice melt in summer heat
ALL IS MELTING?
Anonymous Coward
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08/09/2009 08:46 PM
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Re: Vast expanses of Arctic ice melt in summer heat
all
Anonymous Coward
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08/09/2009 08:50 PM
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Re: Vast expanses of Arctic ice melt in summer heat
Anonymous Coward
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08/09/2009 08:51 PM
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Re: Vast expanses of Arctic ice melt in summer heat
You're kidding.. ice melts in summer?
Who would have thought!
Anonymous Coward (OP)
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08/09/2009 11:32 PM
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Re: Vast expanses of Arctic ice melt in summer heat
You're kidding.. ice melts in summer?
Who would have thought!
 Quoting: Anonymous Coward 745722

wakeup
mr...bojangles

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Mexico
08/09/2009 11:33 PM
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Re: Vast expanses of Arctic ice melt in summer heat
ice melting due to heat?! who would have thought?
 Quoting: neteru<>


no chitt!
Beyond one's own mind there is no dazzling light to come shining in from outside to wake one up. If one recognizes one's own intrinsic State as pure from the beginning and only temporarily obscured by impurities, and if one maintains the presence of this recognition without becoming distracted, then all the impurities dissolve. This is the essence of the Path-namkhai norbu.

Why is there a legend about the descent of Christ into hell? The Teacher addressed the lower strata of the astral world, saying: &#65533;Why, by cherishing earthly thoughts, bind oneself eternally to Earth?&#65533; And many revolted in spirit and rose higher.
Thread: I shot video of the earth from my spacecraft, enjoy!
mr...bojangles

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08/09/2009 11:35 PM
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Re: Vast expanses of Arctic ice melt in summer heat
the ice is melting really fast this year....

really fast....

by this time next year....

the north pole could be completely melted....

beleive it or not!
Beyond one's own mind there is no dazzling light to come shining in from outside to wake one up. If one recognizes one's own intrinsic State as pure from the beginning and only temporarily obscured by impurities, and if one maintains the presence of this recognition without becoming distracted, then all the impurities dissolve. This is the essence of the Path-namkhai norbu.

Why is there a legend about the descent of Christ into hell? The Teacher addressed the lower strata of the astral world, saying: &#65533;Why, by cherishing earthly thoughts, bind oneself eternally to Earth?&#65533; And many revolted in spirit and rose higher.
Thread: I shot video of the earth from my spacecraft, enjoy!
Anonymous Coward
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New Zealand
08/09/2009 11:37 PM
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Re: Vast expanses of Arctic ice melt in summer heat
Yes it will melt. As it has done before throughout the ages.
Anonymous Coward
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08/09/2009 11:46 PM
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Re: Vast expanses of Arctic ice melt in summer heat

 Quoting: Anonymous Coward 742793



Gee, I wonder what is under the black dot in the movie? Heating an ocean is much better accomplished from the bottom up rather than the top down. Perhaps a volcanic source of heat under the blacked out circle? And during the last Ice Age, wasn't most of the Arctic without any ice cover at all? All the ice and snow for an ice age has to come from somewhere; warm ocean waters would be a prime source.
neteru<>

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08/09/2009 11:48 PM
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Re: Vast expanses of Arctic ice melt in summer heat
the ice is melting really fast this year....

really fast....

by this time next year....

the north pole could be completely melted....

beleive it or not!
 Quoting: mr...bojangles

good. then we can all take boat rides to the north hole-literally.
We have finally come back to the pre-Socratic philosopher Heraclitus, who said everything is flow, flux, process. There are no "things." Bruce Lee
Anonymous Coward
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United States
08/10/2009 03:27 AM
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Re: Vast expanses of Arctic ice melt in summer heat
the ice is melting really fast this year....

really fast....

by this time next year....

the north pole could be completely melted....

beleive it or not!

good. then we can all take boat rides to the north hole-literally.
 Quoting: neteru<>


Don't forget to bring your buddies with their drilling rigs. An Arctic ocean free of ice will make it viable to develop oil and gas there. Problem is, with the higher water temperatuures it also makes it easier to pull moisture into the atmosphere and that in turn will drop out as ice and snow further south. See this webpage to note how much cooler this year has been in reference to the expected global warming notion.

www.iceagenow.com





GLP