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tlc

02/23/08 7:49 PM

#316697 RE: easymoney101 #316693

If the ice has restored..
its all (short term..)good news..
the noted melt was
20-30 years ahead of projected schedule

But..there Is
no mention of the thickness..
of the ice...
(most of the melt has been from below...
The heat IS..
In the oceans)

or mention of...
sulfur dioxide emissions increase
from Chinese coal fired plants....
having a short term effect on cooling..
(China opens a new coal fired plant..every 10 days..)

(acid rain is from SO2...)

http://www.huffingtonpost.com/2007/11/04/pollution-from-chinas-co_n_71060.html

analysis of SO2...CO2
http://ams.allenpress.com/archive/1520-0442/6/7/pdf/i1520-0442-6-7-1241.pdf

the problem is..
SO2 remains in the atmosphere...
approx for 4 years......
the CO2 released at the same time..
remains for 75+ years

Nobel Prize winning Scientist
(Atmospheric Chemistry...)
Paul Crutzen..
has suggested..
high altitude release of SO2
as a stop gap solution to
run away warming..
China ..'may be' releasing enough..SO2
to stave off the warming.
but its release of CO2..
will only come back to haunt us...
The heat IS..In the oceans



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tlc

02/23/08 7:56 PM

#316698 RE: easymoney101 #316693

Antarctic glaciers surge to ocean
By Martin Redfern
Rothera Research Station, Antarctica

Sunday, 24 February 2008, 00:24 GMT

UK scientists working in Antarctica have found some of the clearest evidence yet of instabilities in the ice of part of West Antarctica.

If the trend continues, they say, it could lead to a significant rise in global sea level.

The new evidence comes from a group of glaciers covering an area the size of Texas, in a remote and seldom visited part of West Antarctica.

The "rivers of ice" have surged sharply in speed towards the ocean.

David Vaughan, of the British Antarctic Survey, explained: "It has been called the weak underbelly of the West Antarctic Ice Sheet, and the reason for that is that this is the area where the bed beneath the ice sheet dips down steepest towards the interior.

"If there is a feedback mechanism to make the ice sheet unstable, it will be most unstable in this region."

There is good reason to be concerned.

Satellite measurements have shown that three huge glaciers here have been speeding up for more than a decade.

The biggest of the glaciers, the Pine Island Glacier, is causing the most concern.

Inhospitable conditions

Julian Scott has just returned from there. He told the BBC: "This is a very important glacier; it's putting more ice into the sea than any other glacier in Antarctica.

"It's a couple of kilometres thick, its 30km wide and it's moving at 3.5km per year, so it's putting a lot of ice into the ocean."

It is a very remote and inhospitable region. It was visited briefly in 1961 by American scientists but no one had returned until this season when Julian Scott and Rob Bingham and colleagues from the British Antarctic survey spent 97 days camping on the flat, white ice.

At times, the temperature got down to minus 30C and strong winds made work impossible.

At one point, the scientists were confined to their tent continuously for eight days.

"The wind really makes the way you feel incredibly colder, so just motivating yourself to go out in the wind is a really big deal," Rob Bingham told BBC News.

When the weather improved, the researchers spent most of their time driving skidoos across the flat, featureless ice.

"We drove skidoos over it for something like 2,500km each and we didn't see a single piece of topography."

Long drag

Rob Bingham was towing a radar on a 100m-long line and detecting reflections from within the ice using a receiver another 100m behind that.

The signals are revealing ancient flow lines in the ice. The hope is to reconstruct how it moved in the past.

Julian Scott was performing seismic studies, using pressurised hot water to drill holes 20m or so into the ice and place explosive charges in them. He used arrays of geophones strung out across the ice to detect reflections, looking, among other things, for signs of soft sediments beneath the ice that might be lubricating its flow.

He also placed recorders linked to the global positioning system (GPS) satellites on the ice to track the glacier's motion, recording its position every 10 seconds.

Throughout the 1990s, according to satellite measurements, the glacier was accelerating by around 1% a year. Julian Scott's sensational finding this season is that it now seems to have accelerated by 7% in a single season, sending more and more ice into the ocean.

"The measurements from last season seem to show an incredible acceleration, a rate of up to 7%. That is far greater than the accelerations they were getting excited about in the 1990s."

The reason does not seem to be warming in the surrounding air.

One possible culprit could be a deep ocean current that is channelled onto the continental shelf close to the mouth of the glacier. There is not much sea ice to protect it from the warm water, which seems to be undercutting the ice and lubricating its flow.

Ongoing monitoring

Julian Scott, however, thinks there may be other forces at work as well.

Much higher up the course of the glacier there is evidence of a volcano that erupted through the ice about 2,000 years ago and the whole region could be volcanically active, releasing geothermal heat to melt the base of the ice and help its slide towards the sea.

David Vaughan believes that the risk of a major collapse of this section of the West Antarctic ice sheet should be taken seriously.

"There has been the expectation that this could be a vulnerable area," he said.

"Now we have the data to show that this is the area that is changing. So the two things coinciding are actually quite worrying."

The big question now is whether what has been recorded is an exceptional surge or whether it heralds a major collapse of the ice. Julian Scott hopes to find out.

"It is extraordinary and we've left a GPS there over winter to see if it is going to continue this trend."

If the glacier does continue to surge and discharge most of it ice into the sea, say the researchers, the Pine Island Glacier alone could raise global sea level by 25cm.

That might take decades or a century, but neighbouring glaciers are accelerating too and if the entire region were to lose its ice, the sea would rise by 1.5m worldwide.

Story from BBC NEWS:
http://news.bbc.co.uk/go/pr/fr/-/2/hi/science/nature/7261171.stm

Published: 2008/02/24 00:24:09 GMT

© BBC MMVIII
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BlueSky

02/23/08 8:00 PM

#316699 RE: easymoney101 #316693

Global-Warming Authoritarianism
February 20, 2008

Irvine, CA--Many people are calling for drastic political action to cope with climate change. But the authors of a new book, The Climate Change Challenge and the Failure of Democracy, go much further, claiming that global warming can be effectively dealt with only by "an authoritarian form of government."

In an article promoting the book, co-author David Shearman praises China's recent ban on plastic shopping bags, expressing special admiration for its authoritarian quality. "The importance of the decision," he writes, "lies in the fact that China can do it by edict and close the factories."

"Views like this reveal an ugly and ominous aspect of the political frenzy surrounding global warming," said Dr. Keith Lockitch, a resident fellow of the Ayn Rand Institute. "Though easy to dismiss as overwrought and atypical, such views expose a very real authoritarianism underlying the calls for action on climate change.

"While few global-warming activists are willing--as Shearman is--to come out in favor of openly dictatorial policies, the kinds of laws and regulations that activists do call for will hand a comparably frightening degree of control over our lives to politicians and environmentalist bureaucrats.

"In one form or another, every minute of our every day involves the emission of carbon dioxide, the primary greenhouse gas claimed to be the cause of climate change. Every moment we spend running our computers, lighting our homes, powering countless labor-saving appliances, driving to work or school or anywhere else--we are using industrial-scale energy to make our lives better.

"But global-warming activists want our use of the fossil fuels that provide the major source of that energy to be strictly controlled by the government and severely curtailed, no matter the harm that causes.

"Despite the constant assertion that global-warming science is 'settled,'" Lockitch said, "it is far from certain that we face any sort of catastrophic global emergency. But in the name of 'saving the world' from unproven threats, such activists want to impose a draconian regimen of taxes, laws, regulations and controls that would affect the minutest details of our existence. Their solution to their projected 'environmental disaster' is to impose an actual economic disaster by restricting the energy that powers our civilization and subjecting its use to severe political control.

"Let us not allow panic over the exaggerated claims of climate alarmists to deliver us into the hands of would-be carbon dictators."

Dr. Keith Lockitch is available for interviews. To interview Dr. Lockitch or book him for your show, please e-mail media@aynrand.org