Posted on 03/30/2006 4:58:23 PM PST by haole
A new theory to explain global warming was revealed at a meeting at the University of Leicester (UK) and is being considered for publication in the journal "Science First Hand". The controversial theory has nothing to do with burning fossil fuels and atmospheric carbon dioxide levels.
According to Vladimir Shaidurov of the Russian Academy of Sciences, the apparent rise in average global temperature recorded by scientists over the last hundred years or so could be due to atmospheric changes that are not connected to human emissions of carbon dioxide from the burning of natural gas and oil. Shaidurov explained how changes in the amount of ice crystals at high altitude could damage the layer of thin, high altitude clouds found in the mesosphere that reduce the amount of warming solar radiation reaching the earth's surface.
Shaidurov has used a detailed analysis of the mean temperature change by year for the last 140 years and explains that there was a slight decrease in temperature until the early twentieth century. This flies in the face of current global warming theories that blame a rise in temperature on rising carbon dioxide emissions since the start of the industrial revolution. Shaidurov, however, suggests that the rise, which began between 1906 and 1909, could have had a very different cause, which he believes was the massive Tunguska Event, which rocked a remote part of Siberia, northwest of Lake Baikal on the 30th June 1908.
The Tunguska Event, sometimes known as the Tungus Meteorite is thought to have resulted from an asteroid or comet entering the earth's atmosphere and exploding. The event released as much energy as fifteen one-megaton atomic bombs. As well as blasting an enormous amount of dust into the atmosphere, felling 60 million trees over an area of more than 2000 square kilometres. Shaidurov suggests that this explosion would have caused "considerable stirring of the high layers of atmosphere and change its structure." Such meteoric disruption was the trigger for the subsequent rise in global temperatures.
Global warming is thought to be caused by the "greenhouse effect". Energy from the sun reaches the earth's surface and warms it, without the greenhouse effect most of this energy is then lost as the heat radiates back into space. However, the presence of so-called greenhouse gases at high altitude absorb much of this energy and then radiate a proportion back towards the earth's surface. Causing temperatures to rise.
Many natural gases and some of those released by conventional power stations, vehicle and aircraft exhausts act as greenhouse gases. Carbon dioxide, natural gas, or methane, and chlorofluorocarbons (CFCs) are all potent greenhouse gases. Carbon dioxide and methane are found naturally in the atmosphere, but it is the gradual rise in levels of these gases since the industrial revolution, and in particular the beginning of the twentieth century, that scientists have blamed for the gradual rise in recorded global temperature. Attempts to reverse global warming, such as the Kyoto Protocol, have centred on controlling and even reducing CO2 emissions.
However, the most potent greenhouse gas is water, explains Shaidurov and it is this compound on which his study focuses. According to Shaidurov, only small changes in the atmospheric levels of water, in the form of vapour and ice crystals can contribute to significant changes to the temperature of the earth's surface, which far outweighs the effects of carbon dioxide and other gases released by human activities. Just a rise of 1% of water vapour could raise the global average temperature of Earth's surface more then 4 degrees Celsius.
The role of water vapour in controlling our planet's temperature was hinted at almost 150 years ago by Irish scientist John Tyndall. Tyndall, who also provided an explanation as to why the sky is blue, explained the problem: "The strongest radiant heat absorber, is the most important gas controlling Earth's temperature. Without water vapour, he wrote, the Earth's surface would be 'held fast in the iron grip of frost'." Thin clouds at high altitude allow sunlight to reach the earth's surface, but reflect back radiated heat, acting as an insulating greenhouse layer.
Water vapour levels are even less within our control than CO2 levels. According to Andrew E. Dessler of the Texas A & M University writing in 'The Science and Politics of Global Climate Change', "Human activities do not control all greenhouse gases, however. The most powerful greenhouse gas in the atmosphere is water vapour, he says, "Human activities have little direct control over its atmospheric abundance, which is controlled instead by the worldwide balance between evaporation from the oceans and precipitation."
As such, Shaidurov has concluded that only an enormous natural phenomenon, such as an asteroid or comet impact or airburst, could seriously disturb atmospheric water levels, destroying persistent so-called 'silver', or noctilucent, clouds composed of ice crystals in the high altitude mesosphere (50 to 85km). The Tunguska Event was just such an event, and coincides with the period of time during which global temperatures appear to have been rising the most steadily - the twentieth century. There are many hypothetical mechanisms of how this mesosphere catastrophe might have occurred, and future research is needed to provide a definitive answer.
Source: University of Leicester
I knew it: Dihydro Monoxide rears it's ugly head again!
Will we ever be free from this scourge?
Even if it did get reported, it's simply a different model. No more or less valid than the pro-global warming models, since they are all based on what amounts to personal prejudice.
IMHO, this Russian fella is on to something.
Except that the Pro-global warming theory strongly suggests that if we do not change our ways, we are doomed, doomed, I SAY!!
Whereas, this theory seems to have earth history on it's side. After all we have gone through warm-cold-warm trends in the past.
The P-GW's seem to ignore that fact.
Thank you for NOT excerpting this article.
bttt
Do we know for sure that the temperature has only been steadily rising for the last 100-150 years. How do we know it hasn't been rising for the last 300, 500, 1000, 2000, 5000, 10,000, or a million years? Or how do we know that it doesn't have a fluctuation cycle that it goes through every 200 years?
No no this scientist is wrong, global warming is killing us all and its George Bush's fault because he favors big oil etc. etc. We all believe this because some Hollywoood stars and MSM talking heads are telling us to. Scientific theories have nothing to do with it unless they can be used to implicate Bush. </sarcasm
Look for a serious and concerted effort to smear Mr. Vladimir Shaidurov in the near future.
Time to repeat this: let's concede for the sake of argument that there is such a thing as global warming created and caused by the rapid influx of carbon dioxide into the atmosphere by fossil fuels. If that is the case, humanity will need the speed, intelligence, and capacity that arises from individual liberty and capitalism to confront the problem. One thing is more certain that the impact, or lack thereof, of global warming - top-down bureaucratic solutions will fail.
On the other hand... think of all the jobs for underemployed graduate students in the creation of that bureaucracy! And since global warming will take centuries to resolve.... it's an elite wonderland. Maybe they'll keep the jets for themselves and give the rest of us bicycles. The elites will need the air conditioning to think and restructure climate models; the rest of us can use hand fans to stay cool. The elites will also need larger homes, too, because of their tireless efforts to make the world a better place; the rest of us can live in efficient apartments to save energy and space.
To think these guys accuse Bush of concocting an "endless war" to create tyranny. What chutzpah.
My point though, was that, yet again, we are given claims based solely on computer modeling. Simply because we like the predictions of this model better doesn't make it any more scientific or accurate or predictive.
I'm quite sure the Demos will find some way to blame this on George Bush.
Dennis Miller's HBO special bought up the reliability of temps taken 100 years ago. I think he talked about a guy taking a thermometer with him on the way to the outhouse and that is what we're using as proof of Global Warming!!
read later
Dihydrogenmonoxide (DHMO) is colorless, odorless, tasteless, and kills uncounted thousands of people every year. Most of these deaths are caused by accidental inhalation of DHMO, but the danger of DHMO do not end there. Prolonged exposure to its solid form causes severe tissue damage. Symptoms of DHMO ingestion can include excessive sweating and urination, and possibly a bloated feeling, nausea, vomiting and body electrolyte imbalance. For those who have become dependent, DHMO withdrawal means certain death.
DHMO:
* is also known as hydric acid, and is the major component of acid rain,
*
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*
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Contamination is reaching epidemic proportions!
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Impossible. Tunguska was clearly Tesla trying to contact that polar expedition from his tower and it all went badly wrong.
I read it on the internet so it must be true.
This won't get printed anywhere except on the blogs.
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