Canadian ice shelves halve in six years

Sep 29, 2011 By Sunanda Creagh
Canadian ice shelves halve in six years
Around 50% of Canada’s ice shelf has disappeared in the last six years, researchers say. Credit: Denis Sarrazin, ArcticNet/Centre d'Etudes Nordiques

Half of Canada's ancient ice shelves have disappeared in the last six years, researchers have said, with new data showing significant portions melted in the last year alone.

The rate at which ice melts is seen by as an indicator of the pace of .

released by researchers from Carleton University in Ottawa show that most of the Serson Ice Shelf broke away during the Canadian summer this year.

The Ward Hunt Ice Shelf split into two separate pieces during the Canadian summer this year, the images show.

Serson Ice Shelf on March 19, 2011 (red) before Canadian summer 2011 break-up. Serson A is a floating glacier tongue (south) and Serson B is composed of thick, ancient sea ice (north). Blue denotes the coast of Ellesmere Island. Radarsat-2 fine beam imagery © MDA 2011, Distribution licensed by MDA-GSI for the SOAR program

Canadian ice shelves halve in six years
Serson Ice Shelf on September 23, 2011 (red) following Canadian summer 2011 break-up. Serson A is a floating glacier tongue (south) and Serson B is composed of thick, ancient sea ice (north). Blue denotes the coast of Ellesmere Island Radarsat-2 fine beam imagery. Credit: MDA 2011

This ice lost during the Canadian summer this year equals up to three billion tonnes or about 500 times the mass of the of Giza, a statement released by the university said.

“Since the end of July, pieces equaling one and a half times the size of Manhattan Island have broken off,” said Luke Copland, researcher in the Department of Geography at the University of Ottawa. Oil rigs in the Beaufort and Chukchi seas may be at risk from large icebergs that broke off the shelf and are now floating south, he said.

Assistant Professor Derek Mueller, a researcher in the Department of Geography and Environmental Studies, said that Canadian ice shelves had halved in size since 2005.

“The were formed and sustained in a different climate than what we have now. As they disappear, it implies we are returning to conditions unseen in the Arctic for thousands of years,” he said.

Professor Steven Sherwood, Co-Director of the University of NSW’s Climate Change Research Centre, said the rapid pace of melting showed that recent global warming was unnatural.

“The real significance of this, in my view, is that this ice has reportedly been there for thousands of years. The same is true of glaciers that have recently disappeared in the Andes. These observations should dispel in one fell swoop any notion that recent global warming could be natural,” he said.


This story is published courtesy of the The Conversation (under Creative Commons-Attribution/No derivatives).

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User comments : 20

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oberon
1.7 / 5 (26) Sep 29, 2011
Propaganda. No proof of cause and effect.
Jeddy_Mctedder
1.7 / 5 (24) Sep 29, 2011
is it a simple fact that polar ecosystems are not as productive year round as non polar. most of canada is tundra is which very little grows. if global warming is happening as unbelievably fast as the brainwashed masses have faith in, then canada, russia, northern europe, north korea, northern japan, alaska, stand MUCH to gain.

omatumr
1 / 5 (28) Sep 29, 2011
Yes, Earth's climate is changing and has always changed!

To address the issue, we must abandon lock-step, consensus belief in:

a.) The 1967 Bilderberg dogma that Earth's heat source is a homogeneous ball of hydrogen, in equilibrium, generating constant heat by H-fusion.

b.) Auto-centric, pseudo-"scientific" dogma that humans cause global climate change.

These two flaws are the roots of many of society's present ills [1,2].

1. "Political roadblocks to scientific progress" (1971-2011)

http://dl.dropbox...oots.pdf

2. "Video summary of research career" (1961- 2011)

http://dl.dropbox...reer.pdf

With kind regards,
Oliver K. Manuel
Former NASA Principal
Investigator for Apollo
http://myprofile....anuelo09
joefarah
1.8 / 5 (26) Sep 29, 2011
OK, all you GW enthusiasts. Time to make some big money. My recommendation: approach the Canadian government and offer to buy northern land at today's fair market value. Just think, in a few years, after all the snow and ice is gone - you'll make a fortune. We'll judge your certainty of GW by the length of the lineup to buy land.

So that I don't have to wait watching, can someone let me know if the line length gets up to 1?
Shootist
3.1 / 5 (11) Sep 29, 2011
OK, all you GW enthusiasts. Time to make some big money. My recommendation: approach the Canadian government and offer to buy northern land at today's fair market value. Just think, in a few years, after all the snow and ice is gone - you'll make a fortune. We'll judge your certainty of GW by the length of the lineup to buy land.

So that I don't have to wait watching, can someone let me know if the line length gets up to 1?


tongue only partially in cheek?

There will be gold nuggets, the size of your fist, laying on the newly exposed ground. Just as there was in every other newly discovered/explored gold bearing region.

Or placer deposits that run as high as 900 troy oz. per cubic yard of alluvial material.
Nanobanano
3.4 / 5 (12) Sep 29, 2011
if global warming is happening as unbelievably fast as the brainwashed masses have faith in, then canada, russia, northern europe, north korea, northern japan, alaska, stand MUCH to gain.


You're actually right to some extent, assuming the land is fertile enough to sustain increased biosphers going forward. Russian mariners seemed to have been happy about the melting, because it opens up shipping lanes and they don't need ice breakers as much.

It all depends where you are.

If you are in paradise, you have much to lose from global warming.

If you are in frozen wasteland, global warming might be not so bad after all.

Think how much less energy Alaskans would use if they were in a temperate climate, instead of being -40 to -50 degrees in winter.

After a few centuries of global warming, the climate there should be just right...
gmurphy
4 / 5 (20) Sep 29, 2011
Here is the original report: http://http-serve...011.html It's a real pity that articles like this are followed by the same old tired parade of crazies denouncing the staggering evidence of global warming caused by man-made emissions of CO2. I suppose that if you examine the course of human history, there is a well established precedent of the scientific consensus being opposed by the lunatic fringe, HIV, evolution, vaccines and global warming all come to mind. Hopefully, in the course of time, we can come to understand their motivations and enlighten their deficient perception.
Voleure
2.6 / 5 (10) Sep 29, 2011
Though there are some benefits to the northern lands if you look at it from their perspective along with warmer climes, potentially easier times, comes many ills. Pests in the form of invasive species whether they be flora, insects or the southern hordes are flooding in destructively. The biggest problem is the unnatural pace of these changes.
MP3Car
3.9 / 5 (11) Sep 29, 2011
Looking at the rankings of the first five comments, after about 30 rank assignments in total, it's clear that people who have read this article and taken the time to rank comments share the belief the GW is true, and likely caused by man.

The US is one of only a few developed countries that has such a large percentage (49%) of people that believe man has no influence on GW. Note: This was a poll of the general public, not scientists.

The US has a higher percentage of non-believers (of man-induced GW) than S. Korea (92% believe it is man-induced), Greece, Taiwan, Argentina, Brazil, Hong Kong, Chile... Those are all at or above the 75% point... Spain, Mexico, Thailand, Italy, Sweden, France, Israel, Iran, Canada, Egypt, Germany, China, Australia, India, Russia... now we're at the 52% point... then a few more countries, then finally the US at 49%. I will admit, one surprise to me was that the UK is actually lower than the US, 48%.
georgesoros
1.7 / 5 (12) Sep 29, 2011
Great, should free up some productive land for me to start a farm!
Doom1974
3 / 5 (6) Sep 29, 2011
Oberon, Omatur, joefarah, all a bunch of simpletons.... I am starting to think that the global warming is all the product of your hot air.....Really GET A LIFE
omatumr
1 / 5 (11) Sep 29, 2011
We have all been blinded by the auto-centric dogma that humans cause and can fix global climate problems.

That and the 1967 Bilderberg dogma that Earth's heat source is a ball of hydrogen, steadily generating heat by H-fusion, have almost destroyed public confidence in government science and engineering.

Earth's climate is changing and has always changed, because . . .

1. The Sun has evolved and is evolving;
2. Life has evolved and is evolving;
3. Al Gore is powerless over that!

"Origin and Evolution of Life", J Mod Physics 2, 587-594 (2011)

http://dl.dropbox...5079.pdf

With kind regards,
Oliver K. Manuel
http://myprofile....anuelo09

ArtflDgr
1.7 / 5 (11) Sep 29, 2011
one image after end of winter (march 3)
other image after end of summer (sept 23)
PinkElephant
3.5 / 5 (11) Sep 29, 2011
one image after end of winter (march 3)
other image after end of summer (sept 23)
That was the point. The areas outlined in red in the march 3 picture aren't supposed to melt even at the end of summer. Yet they did. Far be it from you to get the point, however -- or even actually read the damn article in the first place -- before chiming in as usual with the rest of the mentally ill trolls.

I say mentally ill, because I can't fathom any healthy motivation to drive people to post the same ignorant drivel over and over, hundreds and thousands of times, for years, on every article that comes out and shows them they are off the deep end. It takes a special kind of insanity -- by Einstein's definition thereof -- to so persist in sheer obdurate ignorance, in contravention of all evidence and logic repeatedly being put in front of you.

You don't just have no life; you are sick. The lot of you.
Howhot
3 / 5 (6) Sep 29, 2011
It's a real pity that articles like this are followed by the same old tired parade of crazies denouncing the staggering evidence of global warming caused by man-made emissions of CO2.


Yeap! It really is. Shame. All though, they did predict our reactions correctly freaking nut cases they are.
Howhot
3.3 / 5 (7) Sep 29, 2011
You know Pink what really does amaze me about this; Here is physical proof of a very rapid global warming phenomena that is directly attributable to our energy consumption, and morons just blow this off as some spin by some do good-er leftists.

You total stupid nuties, your kids will have to live with this.

Birger
3.5 / 5 (8) Sep 30, 2011
As I have stated many times before, a conspiracy to fake global warming would have to span all continents and nearly all nations (not counting countries that cannot afford universities, like Congo) and would require faking several hundred thousand data sets...

If you think this is possible, then I assume you also think jews are secretly controlling the economy, or the communists faked the collapse of the Soviet Union just to put people off their guard.
gwrede
2.3 / 5 (3) Sep 30, 2011
"We've done measurements, and some of these materials are about twice as reflective as aluminum foil."
I wonder what kind of aluminum foil this guy is using.
Buyck
not rated yet Oct 02, 2011
Also the Europeën glaciers are melting also.

link: http://www.planet...ews/3116
Buyck
not rated yet Oct 02, 2011
Also the European glaciers are melting also.

link: http://www.planet...ews/3116

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