Posted on 09/28/2005 6:27:13 PM PDT by blam
Arctic ice cap 'will disappear within the century'
By Roger Highfield, Science Editor
(Filed: 29/09/2005)
The Arctic ice cap is on track to disappear within a century, according to a study published yesterday.
The satellite survey by the US National Snow and Ice Data Centre (NSIDC), and the space agency Nasa reveals that for the fourth consecutive year there has been "a stunning reduction" in Arctic sea ice at the end of the northern summer, placing species such as polar bears at risk.
The reduction in ice levels places Arctic wildlife at risk
The survey recorded the lowest sea-ice extent yet seen - 2.06 million square miles on Sept 19 - 20 per cent below the mean average September sea-ice extent from 1978 to 2001.
That is the equivalent of 500,000 square miles - an area about twice the size of Texas.
This year "will almost certainly surpass 2002 as the lowest amount of ice cover in more than a century", said Julienne Stroeve, of the Centre. If current rates of decline in sea ice continue, the summertime Arctic could be ice-free well before the end of this century.
A recent assessment of trends throughout the past century indicates that the current decline also exceeds past low ice periods in the 1930s and 1940s.
From 1979 until 2001, the rate of September decline was slightly more than 6.5 per cent a decade. In 2002, the trend steepened to 7.3 per cent and is now approximately 8 per cent.
Walt Meier, of NSIDC, said: "Having four years in a row with such low ice extents has never been seen before in the satellite record. It indicates a downward trend, not just a short-term anomaly."
Cooler winter temperatures allow the sea ice to "rebound" after summer melting. But with the exception of May 2005, every month since December 2004 has set a new record low ice extent for that month. The winter recovery of sea ice extent in the 2004-05 season was also the smallest observed by satellites.
"Even if sea ice retreated a lot one summer, it would make a comeback the following winter, when temperatures fall well below freezing," said Florence Fetterer, of NSIDC. "But in the winter of 2004-05, sea ice didn't approach the previous wintertime level."
Compared to the past half century, average surface air temperatures from January until August 2005, were up to 3C (5.4F) warmer than average across most of the Arctic Ocean. Since 2002, satellite records have also revealed that springtime melting is beginning unusually early north of Alaska and Siberia.
This summer, the Northwest Passage was open except for a 60-mile swath of scattered ice floes, a far cry from earlier centuries when expeditions were lost as their crews tried to beat through thick ice. The Northeast Passage, north of the Siberian coast, was ice-free from Aug 15 until Sept 28.
The Arctic may be caught in a feedback loop caused by global warming. As sea ice melts there is less to reflect the sun's radiation back into space and experts fear that the downward trend is reaching a point from which the ice will not recover.
I've said that before, too. What apparently is the cause for concern is the land-locked ice, like on Greenland. But I still don't think there's enough to cause a scenario like "Waterworld."
lol....same logic exactly
and next may the world will be on track to self immolate by August 06
Oh well, in the immortal words of the Liberals favorite economist John Maynard Keynes, " In the long run, we're all dead."
Best bet for me, though, is to have all the ice melt ~ I will live about a block and a half from Chesapeake Bay in that case, with a magnificent view!
I guess it's time to buy some cheap beach-front property
in Macon! /sarc
'zackly. 'shappened before.
That won't matter to the environmental whackos!
I bet Polar Bear steaks are good eatin'.
CFACT
Find this article at this address:
http://www.cfact.org/site/view_article.asp?idarticle=247&idcategory=4
Questioning global warming evidence
Data on ice caps, coral reefs, contradict case for man-made climate change
Monday, November 12, 2001
by David Rothbard and Craig Rucker
From the beginning of its debate, the issue of global warming has included discussion about the possibility of melting ice-caps. Lately, though, old studies are being re-examined, and now it seems as though it is the science, not the frozen H20, that can?t take the heat.
For instance, in one study published in Science Magazine in December of 1999, it was reported that the Arctic Polar icecap may have decreased by as much as 14% over a 20 year period. However, upon re-evaluation, it was later published that virtually all of that decrease occurred during a sharp drop over a lone period of 1-3 years. In fact, more recent estimates have the northern ice-caps at least holding steady, and possibly growing a bit.
Another factor cited as an indicator that global warming is occurring is the reduction in size of the world?s coral reefs. The United Nations Environmental Program has reported that 58% of the world?s coral is in danger from human activities such as global warming. But scientific attempts to link climate change to global coral decline have been far from conclusive. A study by Linsley, Wellington and Schrag were able to establish through coral samples near the island of Rarotonga a climate record for the South Pacific dating back 271 years. Their report, published in Science, showed South Pacific temperatures 250 years ago that were 2 degrees Celsius higher than those measured today.
Such markedly higher water temperatures prior to the onset of the industrial age, and the fact that coral communities survived, strongly undercuts the notion that human induced global warming is a real cause of concern for coral reefs. Further, A 1995 study of reefs in the Western Atlantic and the Caribbean Sea showed that nearly 14% of all reefs in the area were damaged, with damage to individual reefs reaching levels as high as 42%. However, a subsequent study in 1996 published in Revista Biologia de Tropical discovered that the coral had almost fully recovered within a single year ? this after temps were supposedly on the climb!
In short, as science becomes more advanced it seems that the one thing is clear: While ice caps may be growing, and coral reefs are remaining resilient, the one thing that is dwindling for sure is the case for catastrophic man-made global warming.
Copyright © CFACT. All rights reserved.
I can't agree with you more. They are capitalizing on Rita and Katrina. Already I've heard reporters use the lying phrase "the hurricane, a result of global warming" being used. Was it Hitler who said repeat a lie enough times and it becomes the truth? Liberals are sure living up to their master's name if he did!
I have a single crow-sized bird coming in now, long black tail, black mostly, but with solid patches of white around the wings. More mellow sounding than the gray jays. Today it flew in with the gray jays. It is probably a magpie. There was another single one a couple weeks ago, more white over more of the body. Also a large single black and white woodpecker and a smaller single redheaded woodpecker in the past day. Do you have magpies down there in your region?
Now that I think about it, it does make sense.
The rise would be negligible. Ocean levels were lower during the ice ages because a huge ammount of water was locked up in extensive ice caps. Certainly a lot more than there is today.
However our ice caps today are much smaller and thinner than they were to begin with. There are few places that have an ice cover anywhere near what they once were. Where I live now was once covered with a mile or more of ice. Today most of our ice cover is only meters thick in most places.
A recent assessment of trends throughout the past century indicates that the current decline also exceeds past low ice periods in the 1930s and 1940s.
From 1979 until 2001, the rate of September decline was slightly more than 6.5 per cent a decade. In 2002, the trend steepened to 7.3 per cent and is now approximately 8 per cent.
This is confusing low ice periods during 1930's and 1940's. Constant decline since 1979 but 2005 will be record year surpassing 2002, what happened in 2003 and 2004?
I need a college fund for the kids and grandkids to be...I'll make a bet with these idiots...1 billion dollars says we still have an icecap at the end of the century. Of course, that will probably be only about 20 bucks in 100 years. Either way, I'll take it. I will also make the same bet with them about the supply of oil. Like the poor, it will always be with us. Before they take the bet, however, I only ask that they do not further their education in economics in any way. Get ready guys, Indian summer will be here soon, that's when the Global Warming crap starts coming out. It will die by the first snowstorm. Nothing until spring from these idiots!
As I said to a lib friend, *if* things are going downhill that fast, we're all SOL anyway. Overnight extermination of the human race wouldn't change things.
As most of us here note, when the enviro moonbats think they aren't being heard, their response is to make the "crisis" worse on a weekly basis. In another year or two, the ice cap will be melting in 20 years, the seas rising a foot per decade. It is a constant escalation of hyperbole.
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