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From: sixty2nds3/27/2012 7:04:53 AM
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dailymail.co.uk 



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Read more: dailymail.co.uk  this finally proof we're NOT causing global warming? The whole of the Earth heated up in medieval times without human CO2 emissions, says new study
Evidence was found in a rare mineral that records global temperaturesWarming was global and NOT limited to EuropeThrows doubt on orthodoxies around 'global warming'
By TED THORNHILL

PUBLISHED: 07:21 EST, 26 March 2012 | UPDATED: 07:55 EST, 26 March 2012




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Current theories of the causes and impact of global warming have been thrown into question by a new study which shows that during medieval times the whole of the planet heated up.

It then cooled down naturally and there was even a 'mini ice age'.


A team of scientists led by geochemist Zunli Lu from Syracuse University in New York state, has found that contrary to the ‘consensus’, the ‘Medieval Warm Period’ approximately 500 to 1,000 years ago wasn’t just confined to Europe.

In fact, it extended all the way down to Antarctica – which means that the Earth has already experience global warming without the aid of human CO2 emissions.



Cold facts: Antarctica actually warmed up during medieval times, contrary to what climate scientists believe


At present the Intergovernmental Panel on Climate Change (IPCC) argues that the Medieval Warm Period was confined to Europe – therefore that the warming we’re experiencing now is a man-made phenomenon.



More... Australia's giant kangaroos were killed off by humans, not climate change, say researchers


However, Professor Lu has shown that this isn’t true – and the evidence lies with a rare mineral called ikaite, which forms in cold waters.

‘Ikaite is an icy version of limestone,’ said Lu. ‘The crystals are only stable under cold conditions and actually melt at room temperature.’

It turns out the water that holds the crystal structure together - called the hydration water - traps information about temperatures present when the crystals formed.

This finding by Lu's research team establishes, for the first time, ikaite as a reliable way to study past climate conditions.



Evidence that the Earth heated up over a 1,000 years ago was found in a rare mineral called ikaite


The scientists studied ikaite crystals from sediment cores drilled off the coast of Antarctica. The sediment layers were deposited over 2,000 years.

The scientists were particularly interested in crystals found in layers deposited during the ‘Little Ice Age,’ approximately 300 to 500 years ago, and during the Medieval Warm Period before it.


Both climate events have been documented in Northern Europe, but studies have been inconclusive as to whether the conditions in Northern Europe extended to Antarctica.

Lu’s team found that in fact, they did.

They were able to deduce this by studying the amount of heavy oxygen isotopes found in the crystals.

During cool periods there are lots, during warm periods there aren’t.

‘We showed that the Northern European climate events influenced climate conditions in Antarctica,’ Lu says. ‘More importantly, we are extremely happy to figure out how to get a climate signal out of this peculiar mineral. A new proxy is always welcome when studying past climate changes.’

The research was recently published online in the journal Earth And Planetary Science Letters and will appear in print on April 1.











Read more: dailymail.co.uk 

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From: sixty2nds3/27/2012 7:45:29 AM
of 24456
 
online.wsj.com 

Global Warming Models Are Wrong AgainThe observed response of the climate to more CO2 is not in good agreement with predictions.


By WILLIAM HAPPERDuring a fundraiser in Atlanta earlier this month, President Obama is reported to have said: "It gets you a little nervous about what is happening to global temperatures. When it is 75 degrees in Chicago in the beginning of March, you start thinking. On the other hand, I really have enjoyed nice weather."

What is happening to global temperatures in reality? The answer is: almost nothing for more than 10 years. Monthly values of the global temperature anomaly of the lower atmosphere, complied at the University of Alabama from NASA satellite data, can be found at the website drroyspencer.com  The latest (February 2012) monthly global temperature anomaly for the lower atmosphere was minus 0.12 degrees Celsius, slightly less than the average since the satellite record of temperatures began in 1979.

The lack of any statistically significant warming for over a decade has made it more difficult for the United Nations Intergovernmental Panel on Climate Change (IPCC) and its supporters to demonize the atmospheric gas CO2 which is released when fossil fuels are burned. The burning of fossil fuels has been one reason for an increase of CO2 levels in the atmosphere to around 395 ppm (or parts per million), up from preindustrial levels of about 280 ppm.

CO2 is not a pollutant. Life on earth flourished for hundreds of millions of years at much higher CO2 levels than we see today. Increasing CO2 levels will be a net benefit because cultivated plants grow better and are more resistant to drought at higher CO2 levels, and because warming and other supposedly harmful effects of CO2 have been greatly exaggerated. Nations with affordable energy from fossil fuels are more prosperous and healthy than those without.

The direct warming due to doubling CO2 levels in the atmosphere can be calculated to cause a warming of about one degree Celsius. The IPCC computer models predict a much larger warming, three degrees Celsius or even more, because they assume changes in water vapor or clouds that supposedly amplify the direct warming from CO2. Many lines of observational evidence suggest that this "positive feedback" also has been greatly exaggerated.

There has indeed been some warming, perhaps about 0.8 degrees Celsius, since the end of the so-called Little Ice Age in the early 1800s. Some of that warming has probably come from increased amounts of CO2, but the timing of the warming—much of it before CO2 levels had increased appreciably—suggests that a substantial fraction of the warming is from natural causes that have nothing to do with mankind.

Frustrated by the lack of computer-predicted warming over the past decade, some IPCC supporters have been claiming that "extreme weather" has become more common because of more CO2. But there is no hard evidence this is true. After an unusually cold winter in 2011 (December 2010-February 2011) the winter of 2012 was unusually warm in the continental United States. But the winter of 2012 was bitter in Europe, Asia and Alaska.

Weather conditions similar to 2012 occurred in the winter of 1942, when the U.S. Midwest was unusually warm, and when the Wehrmacht encountered the formidable forces of "General Frost" in a Russian winter not unlike the one Russians just had.

Large fluctuations from warm to cold winters have been the rule for the U.S., as one can see from records kept by the National Ocean and Atmospheric Administration, NOAA. For example, the winters of 1932 and 1934 were as warm as or warmer than the 2011-2012 one and the winter of 1936 was much colder.

Nightly television pictures of the tragic destruction from tornadoes over the past months might make one wonder if the frequency of tornadoes is increasing, perhaps due to the increasing levels of CO2 in the atmosphere. But as one can read at Andrew Revkin's New York Times blog, dotearth, "There is no evidence of any trend in the number of potent tornadoes (category F2 and up) over the past 50 years in the United States, even as global temperatures have risen markedly."

Like winter temperatures, the numbers, severity and geographical locations of tornadoes fluctuate from year-to-year in ways that are correlated with the complicated fluid flow patterns of the oceans and atmosphere, the location of the jet stream, El Niño or La Niña conditions of the tropical Pacific Oceans, etc.

As long as the laws of nature exist, we will have tornadoes. But we can save many more lives by addressing the threat of tornadoes directly—for example, with improved and more widely dispersed weather radars, and with better means for warning the people of endangered areas—than by credulous support of schemes to reduce "carbon footprints," or by funding even more computer centers to predict global warming.

It is easy to be confused about climate, because we are constantly being warned about the horrible things that will happen or are already happening as a result of mankind's use of fossil fuels. But these ominous predictions are based on computer models. It is important to distinguish between what the climate is actually doing and what computer models predict. The observed response of the climate to more CO2 is not in good agreement with model predictions.



We need high-quality climate science because of the importance of climate to mankind. But we should also remember the description of how science works by the late, great physicist, Richard Feynman:

"In general we look for a new law by the following process. First we guess it. Then we compute the consequences of the guess to see what would be implied if this law that we guessed is right. Then we compare the result of the computation to nature, with experiment or experience; compare it directly with observation, to see if it works. If it disagrees with experiment it is wrong."

The most important component of climate science is careful, long-term observations of climate-related phenomena, from space, from land, and in the oceans. If observations do not support code predictions—like more extreme weather, or rapidly rising global temperatures—Feynman has told us what conclusions to draw about the theory.

Mr. Happer is a professor of physics at Princeton.

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To: grusum9 who wrote (20672)3/27/2012 8:25:38 AM
From: DMaA
of 24456
 
The Chinese have transmogrified a lot of their muscle, energy, and capital into skyscrapers.

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To: DMaA who wrote (20675)3/27/2012 9:02:27 AM
From: grusum9
of 24456
 
The Chinese have transmogrified a lot of their muscle, energy, and capital into skyscrapers.


true, but the skyscrapers were never wealth.

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To: grusum9 who wrote (20676)3/27/2012 9:26:55 AM
From: DMaA
of 24456
 
Not that there's anything wrong with building buildings.

Dogs bury bones. The buried bone isn't wealth but so what? It is in the dog's nature to bury bones.

Beautiful buildings may not be wealth but so what? It is a fundamental part of human nature to build. You have to supply force to stop us from doing it.

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To: DMaA who wrote (20677)3/27/2012 9:29:32 AM
From: grusum9
of 24456
 
Beautiful buildings may not be wealth but so what? It is a fundamental part of human nature to build. You have to supply force to stop us from doing it.


there's nothing wrong at all with buildings. we need them.

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To: grusum9 who wrote (20678)3/27/2012 9:45:56 AM
From: DMaA
of 24456
 
So why did Ahhaha make that post. Buildings aren't wealth. Ok. So what?

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To: DMaA who wrote (20679)3/27/2012 9:56:12 AM
From: grusum9
of 24456
 
So why did Ahhaha make that post. Buildings aren't wealth. Ok. So what?


most people think that buildings are a form of wealth. he was simply saying they aren't.

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To: DMaA who wrote (20679)3/30/2012 3:53:28 AM
From: frankw1900
of 24456
 
Ok. So what?

His point was most folk don't know that real wealth lies in know how. The fabulous wealth lies in our collective know how.

Poor folk and poor countries are poor because they don't have know how.

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From: frankw19003/30/2012 6:05:31 AM
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Taleb: How to Prevent Other Financial Crises

fooledbyrandomness.com 

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