Sent: Saturday, July 19, 2008 5:29 PM
Subject: Re: WE FACE EXTRAORDINARY RISKS - because the Planet is Now Cooling

The truth is becoming apparent.....Ken

http://www.geocraft.com/WVFossils/Carboniferous_climate.html#anchor147264
Similarities with our Present World

Average global temperatures in the Early Carboniferous Period were hot- approximately 20° C (68° F). However, cooling during the Middle Carboniferous reduced average global temperatures to about 12° C (54° F). As shown on the chart below, this is comparable to the average global temperature on Earth today!

Similarly, atmospheric concentrations of carbon dioxide (CO2) in the Early Carboniferous Period were approximately 1500 ppm (parts per million), but by the Middle Carboniferous had declined to about 350 ppm -- comparable to average CO2 concentrations today!

Earth's atmosphere today contains about 380 ppm CO2 (0.038%). Compared to former geologic times, our present atmosphere, like the Late Carboniferous atmosphere, is CO2- impoverished! In the last 600 million years of Earth's history only the Carboniferous Period and our present age, the Quaternary Period, have witnessed CO2 levels less than 400 ppm.




There has historically been much more CO2 in our atmosphere than exists today. For example, during the Jurassic Period (200 mya), average CO2 concentrations were about 1800 ppm  or about 4.7 times higher than today. The highest concentrations of CO2 during all of the Paleozoic Era occurred during the Cambrian Period, nearly 7000 ppm -- about 18 times higher than today.

The Carboniferous Period and the Ordovician Period were the only geological periods during the Paleozoic Era when global temperatures were as low as they are today. To the consternation of global warming proponents, the Late Ordovician Period was also an Ice Age while at the same time CO2 concentrations then were nearly 12 times higher than today-- 4400 ppm. According to greenhouse theory, Earth should have been exceedingly hot. Instead, global temperatures were no warmer than today. Clearly, other factors besides atmospheric carbon influence earth temperatures and global warming.


 

« Last Edit: July 19, 2008, 01:18:22 PM by sailboi » 4.242.120.189

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« Reply #358 on: July 19, 2008, 01:35:05 PM »
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http://www.informaworld.com/smpp/content~content=a788582859~db=all

Cooling of Atmosphere Due to CO2 Emission
Authors: G. V. Chilingar a;  L. F. Khilyuk a; O. G. Sorokhtin b
Affiliations:      a Rudolf W. Gunnerman Energy and Environment Laboratory, University of Southern California, Los Angeles, California, USA
   b Institute of Oceanology of Russian Academy of Sciences, Moscow, Russia
DOI: 10.1080/15567030701568727
Publication Frequency: 16 issues per year
Published in: journal Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, Volume 30, Issue 1 January 2008 , pages 1 - 9
Subjects: Energy & Fuels; Engineering & Technology: Environmental Engineering; Engineering: Environmental Engineering;
   
Abstract
The writers investigated the effect of CO2 emission on the temperature of atmosphere. Computations based on the adiabatic theory of greenhouse effect show that increasing CO2 concentration in the atmosphere results in cooling rather than warming of the Earth's atmosphere.




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« Reply #359 on: July 19, 2008, 01:43:35 PM »
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No Global Warming Since 1998 As Planet Cools Off
UN scientists admit that natural weather occurrences more powerful than CO2 emissions


Paul Joseph Watson
Prison Planet
Friday, April 4, 2008
   
Top UN scientists have been forced to admit that natural weather occurrences are having a far greater effect on climate change than CO2 emissions as a continued cooling trend means there has been no global warming since 1998.

But despite overwhelming signs of global cooling - China's coldest winter for 100 years and record snow levels across Northeast America - allied with temperature records showing a decline - global warming advocates still cling to the notion that the world is cooling because of global warming!

    "Global temperatures will drop slightly this year as a result of the cooling effect of the La Nina current in the Pacific, UN meteorologists have said," reports the BBC.

    "The World Meteorological Organization's secretary-general, Michel Jarraud, told the BBC it was likely that La Nina would continue into the summer."

    "This would mean global temperatures have not risen since 1998, prompting some to question climate change theory."

The report admits that La Nina and its counterpart, El Nino, are "two great natural Pacific currents whose effects are so huge they resonate round the world."



http://www.dailymail.co.uk/news/article-563104/Global-warming-stop-NATURALLY-years-say-scientists.html


Global warming could stop NATURALLY for ten years,' say scientists
Last updated at 08:40 01 May 2008

Global warming will be "put on hold" over the next decade because of natural climate variations, scientists claim.

A study of sea temperature changes predicts a lull as traditional climate cycles cancel out the heating effect of greenhouse gases from pollution.

The findings suggest the official models used to predict short-term global warming patterns are too crude.



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« Reply #361 on: July 19, 2008, 02:21:50 PM »
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From: http://www.prisonplanet.com/two-peer-reviewed-scientific-papers-debunk-co2-myth.html

In a related development, the peer-reviewed Physics and Society journal has published evidence proving that the UN IPCC's 2007 climate summary "overstated CO2's impact on temperature by 500-2000%."

According to the paper, "Computer models used by the UN's climate panel (IPCC) were pre-programmed with overstated values for the three variables whose product is "climate sensitivity" (temperature increase in response to greenhouse-gas increase), resulting in a 500-2000% overstatement of CO2's effect on temperature in the IPCC's latest climate assessment report, published in 2007."

The paper also outlines evidence to confirm that Mars, Jupiter, Neptune's largest moon, and Pluto warmed at the same time as Earth warmed, a factor attributed to the Sun having been more active than at almost any other time in the past 11,400 years.

The paper concludes, "CO2 enrichment will add little more than 1 °F (0.6 °C) to global mean surface temperature by 2100."


http://www.aps.org/units/fps/newsletters/200807/monckton.cfm
( this is an EXTENSIVE scientific overview, which concludes as follows - Ken )

Discussion

We have set out and then critically examined a detailed account of the IPCC's method of evaluating climate sensitivity. We have made explicit the identities, interrelations, and values of the key variables, many of which the IPCC does not explicitly describe or quantify. The IPCC's method does not provide a secure basis for policy-relevant conclusions. We now summarize some of its defects.

The IPCC's methodology relies unduly – indeed, almost exclusively – upon numerical analysis, even where the outputs of the models upon which it so heavily relies are manifestly and significantly at variance with theory or observation or both. Modeled projections such as those upon which the IPCC's entire case rests have long been proven impossible when applied to mathematically-chaotic objects, such as the climate, whose initial state can never be determined to a sufficient precision. For a similar reason, those of the IPCC's conclusions that are founded on probability distributions in the chaotic climate object are unsafe.

Not one of the key variables necessary to any reliable evaluation of climate sensitivity can be measured empirically. The IPCC's presentation of its principal conclusions as though they were near-certain is accordingly unjustifiable. We cannot even measure mean global surface temperature anomalies to within a factor of 2; and the IPCC's reliance upon mean global temperatures, even if they could be correctly evaluated, itself introduces substantial errors in its evaluation of climate sensitivity.

The IPCC overstates the radiative forcing caused by increased CO2 concentration at least threefold because the models upon which it relies have been programmed fundamentally to misunderstand the difference between tropical and extra-tropical climates, and to apply global averages that lead to error.

The IPCC overstates the value of the base climate sensitivity parameter for a similar reason. Indeed, its methodology would in effect repeal the fundamental equation of radiative transfer (Eqn. 18), yielding the impossible result that at every level of the atmosphere ever-smaller forcings would induce ever-greater temperature increases, even in the absence of any temperature feedbacks.

The IPCC overstates temperature feedbacks to such an extent that the sum of the high-end values that it has now, for the first time, quantified would cross the instability threshold in the Bode feedback equation and induce a runaway greenhouse effect that has not occurred even in geological times despite CO2 concentrations almost 20 times today's, and temperatures up to 7 ºC higher than today's.

The Bode equation, furthermore, is of questionable utility because it was not designed to model feedbacks in non-linear objects such as the climate. The IPCC's quantification of temperature feedbacks is, accordingly, inherently unreliable. It may even be that, as Lindzen (2001) and Spencer (2007) have argued, feedbacks are net-negative, though a more cautious assumption has been made in this paper.

It is of no little significance that the IPCC's value for the coefficient in the CO2 forcing equation depends on only one paper in the literature; that its values for the feedbacks that it believes account for two-thirds of humankind's effect on global temperatures are likewise taken from only one paper; and that its implicit value of the crucial parameter κ depends upon only two papers, one of which had been written by a lead author of the chapter in question, and neither of which provides any theoretical or empirical justification for a value as high as that which the IPCC adopted.

The IPCC has not drawn on thousands of published, peer-reviewed papers to support its central estimates for the variables from which climate sensitivity is calculated, but on a handful.

On this brief analysis, it seems that no great reliance can be placed upon the IPCC's central estimates of climate sensitivity, still less on its high-end estimates. The IPCC's assessments, in their current state, cannot be said to be "policy-relevant". They provide no justification for taking the very costly and drastic actions advocated in some circles to mitigate "global warming", which Eqn. (30) suggests will be small (<1 °C at CO2 doubling), harmless, and beneficial.

Conclusion

Even if temperature had risen above natural variability, the recent solar Grand Maximum may have been chiefly responsible. Even if the sun were not chiefly to blame for the past half-century's warming, the IPCC has not demonstrated that, since CO2 occupies only one-ten-thousandth part more of the atmosphere that it did in 1750, it has contributed more than a small fraction of the warming. Even if carbon dioxide were chiefly responsible for the warming that ceased in 1998 and may not resume until 2015, the distinctive, projected fingerprint of anthropogenic "greenhouse-gas" warming is entirely absent from the observed record. Even if the fingerprint were present, computer models are long proven to be inherently incapable of providing projections of the future state of the climate that are sound enough for policymaking. Even if per impossible the models could ever become reliable, the present paper demonstrates that it is not at all likely that the world will warm as much as the IPCC imagines. Even if the world were to warm that much, the overwhelming majority of the scientific, peer-reviewed literature does not predict that catastrophe would ensue. Even if catastrophe might ensue, even the most drastic proposals to mitigate future climate change by reducing emissions of carbon dioxide would make very little difference to the climate. Even if mitigation were likely to be effective, it would do more harm than good: already millions face starvation as the dash for biofuels takes agricultural land out of essential food production: a warning that taking precautions, "just in case", can do untold harm unless there is a sound, scientific basis for them. Finally, even if mitigation might do more good than harm, adaptation as (and if) necessary would be far more cost-effective and less likely to be harmful.

In short, we must get the science right, or we shall get the policy wrong. If the concluding equation in this analysis (Eqn. 30) is correct, the IPCC's estimates of climate sensitivity must have been very much exaggerated. There may, therefore, be a good reason why, contrary to the projections of the models on which the IPCC relies, temperatures have not risen for a decade and have been falling since the phase-transition in global temperature trends that occurred in late 2001. Perhaps real-world climate sensitivity is very much below the IPCC's estimates. Perhaps, therefore, there is no "climate crisis" at all. At present, then, in policy terms there is no case for doing anything. The correct policy approach to a non-problem is to have the courage to do nothing.

Acknowledgements

I am particularly grateful to Professors David Douglass and Robert Knox for having patiently answered many questions over several weeks, and for having allowed me to present a seminar on some of these ideas to a challenging audience in the Physics Faculty at Rochester University, New York; to Dr. David Evans for his assistance with temperature feedbacks; to Professor Felix Fitzroy of the University of St. Andrews for some vigorous discussions; to Professor Larry Gould and Dr. Walter Harrison for having given me the opportunity to present some of the data and conclusions on radiative transfer and climate sensitivity at a kindly-received public lecture at Hartford University, Connecticut; to Dr. Joanna Haigh of Imperial College, London, for having supplied a crucial piece of the argument; to Professor Richard Lindzen of the Massachusetts Institute of Technology for his lecture-notes and advice on the implications of the absence of the tropical mid-troposphere "hot-spot" for climate sensitivity; to Dr. Willie Soon of the Harvard Center for Astrophysics for having given much useful advice and for having traced several papers that were not easily obtained; and to Dr. Roy Spencer of the University of Alabama at Huntsville for having answered several questions in connection with satellite data. Any errors that remain are mine alone. I have not received funding from any source for this research.

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Christopher Monckton of Brenchley
Carie, Rannoch, PH17 2QJ
monckton@mail.com