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1 posted on 12/17/2004 2:27:50 AM PST by Exton1
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To: Exton1

Good find!


2 posted on 12/17/2004 2:34:33 AM PST by TigerLikesRooster
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To: Exton1
The rapid warming of the 13th century was followed by a period of extended warmth that lasted until an abrupt cooling event occurred

I knew man was behind all these changes....

3 posted on 12/17/2004 2:38:55 AM PST by Always Right
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To: Exton1

Did you know that 10,000 years ago, the amount of oxygen in the air was about 35% and the pressures was twice because the earth was smaller, to day oxygen in some major cities is 22%, at 15 % all life dies


5 posted on 12/17/2004 2:42:18 AM PST by larrye2001
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To: Exton1; cogitator
Such natural temperature variability demonstrates the high degree of difficulty associated with attempting to separate effects of anthropogenic climatic forcing from those of natural causes.

No it is not. You just manipulate the data so all those variabilities go away and you come up with the fairytale hockey-stick theory.

6 posted on 12/17/2004 2:47:05 AM PST by Always Right
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To: PatrickHenry

An ironic ping (you know what I mean).


12 posted on 12/17/2004 3:14:48 AM PST by Junior (FABRICATI DIEM, PVNC)
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To: blam

ping


15 posted on 12/17/2004 3:27:58 AM PST by Boot Hill (Candy-gram for Osama bin Mongo, candy-gram for Osama bin Mongo!!!)
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To: Exton1
Lake sediment cores from Donard Lake, Baffin Island, Canada (approximately 66.25°N, 62°W), were analyzed to produce a 1240-year record of average summer temperatures for this region.

Sediment cores (snicker) Might as well have had them stick a finger in the water, roll their eyes back chanting, then just start writing estimates. Bout as useful.

22 posted on 12/17/2004 3:46:11 AM PST by Havoc (Reagan was right and so was McKinley. Down with free trade.)
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To: Exton1

Does this mean I will die soon or live to see Hillary loose the 2008 election?


30 posted on 12/17/2004 4:00:19 AM PST by bmwcyle (I wear sleepwear therefore I think (When they are off I am single minded))
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To: Exton1
"Anomalously warm decades with summer temperatures as high as 4°C occurred around 1000 and 1100 A.D. At the beginning of the 13th century, Donard Lake witnessed "one of the largest climatic transitions in over a millennium," as "average summer temperatures rose rapidly by nearly 2°C from 1195-1220 A.D., ending in the warmest decade in the record" with temperatures near 4.5°C."

Ah, yet more research that shows that the "Medieval Climate Optimum" period was indeed global, and not an "anomaly confined to Western Europe (or the Northern Hemisphere)" as the "global warmers" are so fond of claiming.

38 posted on 12/17/2004 5:23:59 AM PST by Wonder Warthog (The Hog of Steel)
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To: Exton1
"average summer temperatures rose rapidly by nearly 2°C from 1195-1220 A.D., ending in the warmest decade in the record" with temperatures near 4.5°C

Well, of course. Anyone who read their history remembers that Europe was in the dark ages. So all those Europeans probably lit up candles and oil lamps and, thusly, overheated the planet.

[The planet has had temp variations throughout. Global warming has happened before and it will happen again. Global cooling has happened before and it will happen again. Global changes (increased and decreased temps) have happened without much impact from humankind.]
41 posted on 12/17/2004 6:14:30 AM PST by TomGuy (America: Best friend or worst enemy. Choose wisely.)
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To: Exton1
At the beginning of the 13th century, Donard Lake witnessed "one of the largest climatic transitions in over a millennium," as "average summer temperatures rose rapidly by nearly 2°C from 1195-1220 A.D., ending in the warmest decade in the record" with temperatures near 4.5°C.

Global warming created by those dang Europeans and their SUVs! ;o)

49 posted on 12/17/2004 7:00:55 AM PST by SuziQ (W: STILL the President)
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To: Exton1; abbi_normal_2; Ace2U; adam_az; Alamo-Girl; Alas; alfons; alphadog; amom; AndreaZingg; ...
Rights, farms, environment ping.
Let me know if you wish to be added or removed from this list.
I don't get offended if you want to be removed.
52 posted on 12/17/2004 8:51:44 AM PST by farmfriend ( Congratulation. You are everything we've come to expect from years of government training.)
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To: Exton1

A 1240-Year Record of Arctic Temperatures

And here's the guy who's been keeping those records all these years!


53 posted on 12/17/2004 8:56:33 AM PST by COBOL2Java (If this isn't the End Times it certainly is a reasonable facsimile...)
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To: Exton1

The human impact of Vikings on the environment should be noted. When it got warmer the Vikings traveled farther. When it got colder, they didn't. Therefore the Vikings (human technology) caused the global warming and now their anscestors feel guilt and remorse and will leave no oil well unturned to make amends for their sins.


60 posted on 12/17/2004 11:56:34 AM PST by NormalGuy (If not Normal, Spin it)
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To: Exton1

In other words, any 'global warming' evidence thus far presented is within this range andf therefroe NO MEANINGFUL CONCLUSION can be drawn.

End of science lesson.


61 posted on 12/17/2004 11:59:50 AM PST by Mr. K ((this space for rent))
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To: Exton1

bump


71 posted on 12/17/2004 4:32:21 PM PST by VOA
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To: Exton1

bump


72 posted on 12/17/2004 4:32:35 PM PST by VOA
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To: Exton1

Fascinating Bump.


77 posted on 12/17/2004 6:31:07 PM PST by Nowhere Man (We have enough youth, how about a Fountain of Smart?)
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To: Exton1

Kick-the-greenies-in-the-pants Bump.


94 posted on 12/20/2004 9:38:24 AM PST by roaddog727 (The marginal propensity to save is 1 minus the marginal propensity to consume.)
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To: Exton1

Earth Temps Over Last 18,000 Years
Compiled by R.S. Bradley and J.A. Eddy based on J.T. Houghton et al., Climate Change: The IPCC Assessment, Cambridge University Press, Cambridge, 1990 and published in EarthQuest, vo. 1, 1991. Courtesy of Thomas Crowley, Remembrance of Things Past: Greenhouse Lessons from the Geologic Record
1. The idea that man-made pollution is responsible for global warming is not supported by historical fact. The period known as the Holocene Maximum is a good example-- so-named because it was the hottest period in human history. The interesting thing is this period occurred approximately 7500 to 4000 years B.P. (before present)-- long before human's invented industrial pollution.

 


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Figure 1

2. CO2 in our atmosphere has been increasing steadily for the last 18,000 years-- long before humans invented smokestacks ( Figure 1). Unless you count campfires and intestinal gas, man played no role in the pre-industrial increases.

As illustrated in this chart of Ice Core data from the Soviet Station Vostok in Antarctica, CO2 concentrations in earth's atmosphere move with temperature. Both temperatures and CO2 have been steadily increasing for 18,000 years. Ignoring these 18,000 years of data "global warming activists" contend recent increases in atmospheric CO2 are unnatural and are the result of only 200 years or so of human pollution causing a runaway greenhouse effect.

Incidentally, earth's temperature and CO2 levels today have reached levels similar to a previous interglacial cycle of 120,000 - 140,000 years ago. From beginning to end this cycle lasted about 20,000 years. This is known as the Eemian Interglacial Period and the earth returned to a full-fledged ice age immediately afterward.

 


view full-size image

Figure 2

3. Total human contributions to greenhouse gases account for only about 0.28% of the "greenhouse effect" (Figure 2). Anthropogenic (man-made) carbon dioxide (CO2) comprises about 0.117% of this total, and man-made sources of other gases ( methane, nitrous oxide (NOX), other misc. gases) contributes another 0.163% .

Approximately 99.72% of the "greenhouse effect" is due to natural causes -- mostly water vapor and traces of other gases, which we can do nothing at all about. Eliminating human activity altogether would have little impact on climate change.

 

 
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Figure 3

4. If global warming is caused by CO2 in the atmosphere then does CO2 also cause increased sun activity too?

This chart adapted after Nigel Calder (6) illustrates that variations in sun activity are generally proportional to both variations in atmospheric CO2 and atmospheric temperature (Figure 3).

Put another way, rising Earth temperatures and increasing CO2 may be "effects" and our own sun the "cause".


97 posted on 12/20/2004 10:36:20 AM PST by JeffersonRepublic.com
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