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Collapse of ancient Ellesmere ice shelf *stuns scientists*
http://www.nunatsiaqonline.ca/stories/article/260810_collapse_of_ancient_ellesmere_ice_shelf_stuns_scientists ^ | August 26th, 2010

Posted on 08/27/2010 9:06:50 PM PDT by TaraP

“The ice seems to be fracturing all over the Arctic once again”

A huge chunk of ice about the size of Bermuda has cracked off Canada’s largest remaining Arctic ice shelf.

The ancient slab of ice, measuring about 50 square kilometres in area and almost 400 metres thick, broke away from the Ward Hunt Ice Shelf on Ellesmere Island’s northern coast last week, the Canadian Ice Service said Aug. 25.

“The whole northeast quarter seems to have gone,” said Trudy Wohlleben, a senior ice forecaster at the service, who first noticed cracks developing on the shelf in early August. Satellite images over the last week have confirmed the huge chunk of ancient ice shelf has broken away, she says.

The breakup points to the profound change underway in the Arctic and the accelerating loss of a unique and “majestic” part of Canada’s landscape, says John England, University of Alberta earth scientist.

The Ward Hunt is the largest of the remaining ice shelves that have clung to Ellesmere Island for 3,000 to 5,000 years. They contain the oldest sea ice in the northern hemisphere, England says, and have no counterpart in Greenland or Russia.

“They’re our California redwoods, they’re our pyramids, they’re a really unique, intriguing aspect of our Canadian landscape,” says England. “And they are disappearing.”

The fracturing of such a large chuck of the Ward Hunt is one of the more remarkable changes Wohlleben and her colleagues have seen in the Arctic this summer, which has seen plenty of action.

“This year, the ice seems to be fracturing all over the Arctic once again,” Wohlleben said in an interview, noting that 2009 had been quiet compared to 2008 and 2007.

Wohlleben was also the first to spot a gargantuan chunk of ice that calved off Greenland’s Petermann Glacier this summer. It is about 251 square kilometres in size - four times the size of Manhattan - and is drifting toward Canadian waters.

While the Greenland iceberg is much bigger, England says the loss of such a big chunk of the Ward Hunt shelf is in some ways more significant because the ice is so old.

“It’s not like these things come and go every few years or decades,” says England, noting that it would take centuries of cold weather to regrow Ellesmere’s ice shelves. “We can’t just sweep it under the carpet and say ‘It’s one of nature’s cycles’,” he said of the disintegration that shows little sign of letting up.

There are still several weeks to go before the Arctic ice pack reaches its minimum for this year. At this stage Wohlleben says it doesn’t look as if this will break the record ice retreat seen in 2007.

“But it will be close,” she said.


TOPICS: Foreign Affairs; News/Current Events; Philosophy
KEYWORDS: agw; catastrophism
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To: Vigilanteman

Well the Moon seems to be out of Orbit lately...Tonight it rose to the far left, with Jupiter following close by or maybe that is Venus?


21 posted on 08/27/2010 9:54:47 PM PDT by TaraP (He never offered our victories without fighting but he said help would always come in time)
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To: TaraP
The earth is over 4 billion years old and these people are impressed when a 5,000yo chunk of ice breaks off.

Why don't they wonder where in the hell the 5,000,000yo chunks are?

22 posted on 08/27/2010 9:56:21 PM PDT by VeniVidiVici (It's easy being a communist when you're rich.)
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To: TaraP
Wanna really see the ice disappear? Watch the Laurentide Ice Retreat.
23 posted on 08/27/2010 9:56:58 PM PDT by ProtectOurFreedom
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To: Vigilanteman
Do you suppose this could be caused by something really weird like the earth tilting toward or away from the sun as the seasons change?

BLASPHEMER!!! YOU DARE TO MOCK GAIA????!!!!


24 posted on 08/27/2010 10:08:22 PM PDT by VeniVidiVici (It's easy being a communist when you're rich.)
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To: TaraP

25 posted on 08/27/2010 10:38:35 PM PDT by Flavius
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To: TaraP

Was there any gravity on earth before Newton got whacked with an apple?


26 posted on 08/27/2010 10:51:30 PM PDT by G Larry (Democrats: expediting the Destruction of America, before they lose power...)
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To: Vigilanteman

Close! The tilt of Earth’s axis does not change (much). The tilt between the rotational axis (line between the North and South geographic poles) and the plane formed by the orbit of the earth around the sun (nominally 23 degrees, 27 minutes, 5.55 seconds of arc) cause the changing of the seasons and the inversion of the curve of ice formation between north and south poles. If I missed your sarcasm, I apologize in advance.


27 posted on 08/27/2010 10:56:15 PM PDT by j_tull (I may make you feel, but I can't make you think.)
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To: TaraP

“The Ward Hunt is the largest of the remaining ice shelves that have clung to Ellesmere Island for 3,000 to 5,000 years.”

When it comes to glaciers, that is an eyeblink.


28 posted on 08/27/2010 10:59:01 PM PDT by SaxxonWoods (Gone Galt and loving it)
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To: TaraP
If ice does not break away during summer, then winter growth will accrete and eventually cover the planet. What's with the hysteria?
29 posted on 08/27/2010 10:59:58 PM PDT by LoneRangerMassachusetts (The meek shall not inherit the Earth)
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To: TaraP
If ice does not break away during summer, then winter growth will accrete and eventually cover the planet. What's with the hysteria?
30 posted on 08/27/2010 10:59:58 PM PDT by LoneRangerMassachusetts (The meek shall not inherit the Earth)
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To: TaraP

I didn’t know Karl Rove was up in Canada? Using his ice-fracturing machine?


31 posted on 08/27/2010 11:08:36 PM PDT by machogirl (First they came for my tagline.)
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To: SaxxonWoods

5000 years means it started growing AFTER our present interglacial period. This is such a non issue it isn’t funny.


32 posted on 08/27/2010 11:41:41 PM PDT by Steve Van Doorn (*in my best Eric cartman voice* 'I love you guys')
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To: TaraP

Uh, how do they know how ‘ancient’ this ice shelf actually is? It may just break off every 5000 years or so; how would they know otherwise?


33 posted on 08/27/2010 11:45:35 PM PDT by SuziQ
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To: TaraP

Collapse of ancient Ellesmere ice shelf *stuns scientists* who were standing on it


34 posted on 08/28/2010 12:01:43 AM PDT by bunkerhill7
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To: SunkenCiv; Ernest_at_the_Beach
“We can’t just sweep it under the carpet and say ‘It’s one of nature’s cycles’,”

Cyclic cynicism ping
35 posted on 08/28/2010 12:26:23 AM PDT by BIGLOOK (Keelhaul Congress!)
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Hurry, we must raise taxes before more ice melts.


36 posted on 08/28/2010 1:06:02 AM PDT by Hayride
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To: TaraP

These people promote progress and change except when they are not causing it....then, they become conservationists and traditionalists.


37 posted on 08/28/2010 4:08:29 AM PDT by Erik Latranyi (Too many conservatives urge retreat when the war of politics doesn't go their way.)
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To: BIGLOOK; 75thOVI; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; ...
All wannabee climate scientists should spend all their undergrad years observing icemaking machines. :') Thanks BIGLOOK.
 
Catastrophism
 
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38 posted on 08/28/2010 7:45:23 AM PDT by SunkenCiv (Democratic Underground... matters are worse, as their latest fund drive has come up short...)
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To: Nailbiter

“Especially when being used for intended purpose of cooling adult beverage”

and that is why I do not add water to my scotch.....


39 posted on 08/28/2010 7:54:09 AM PDT by Kimmers (Illegal immigration is destroying America, look what it did to the White House)
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To: G Larry

Yeah, before Newton, thins fell up.


40 posted on 08/28/2010 8:18:29 AM PDT by ixtl (When people fear government, there is tyranny; when government fears people, there is liberty.)
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