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The effectiveness of CO2 as a greenhouse gas .... [Copy link] 中文

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Post time 2013-5-11 14:20:36 |Display all floors
The effectiveness of CO2 as a greenhouse gas becomes ever more marginal with greater concentration


Posted on May 8, 2013        by Anthony Watts


Excerpt:


The political target of limiting the effect of Man-made global warming to only +2⁰C can never be attained.                                                                                                                                                               
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Guest essay by Ed Hoskins                                                                                                                        
According to well understood physical parameters, the effectiveness of CO2 as a greenhouse gas diminishes logarithmically with increasing concentration and from the current level of ~390 ppmv, (parts per million by volume). Accordingly only ~5% of the effectiveness of CO2 as a greenhouse gas remains beyond the current level.This inconvenient fact is well understood in the climate science community. It can be accurately modeled using the Modtran program maintained and supported at the University of Chicago. The logarithmic diminution of the effect of CO2 is probably the reason why there was no runaway greenhouse warming from CO2 in earlier eons when CO2 levels were known to be at levels of several thousands ppmv.





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Post time 2013-5-11 19:32:29 |Display all floors






all Rat outputs are full of ignorance, laziness and lack of research

All prepared for cyberspace where lay people dont realise they are frauds and cheats.


I've made my living, Mr. Thompson, in large part as a gambler. Some days I make twenty bets, some days I make none. There are weeks, sometimes months, in fact, when I don't make any bet at all because ...

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Post time 2013-5-12 10:10:22 |Display all floors

RE: The effectiveness of CO2 as a greenhouse gas ....

Relax! Celebrate 400 PPM Of CO2! Bloomberg News features Climate Depot’s Morano: ‘The Earth has had many-times-higher levels of CO2 in the past. Americans should welcome the 400 ppm threshold. This means that plants are going to be happy, and this means that global-warming fearmongers are going to be proven wrong’

Bloomberg News features Climate Depot's Morano: 'The Earth has had many-times-higher levels of CO2 in the past. Americans should welcome the 400 ppm threshold. This means that plants are going to be happy, and this means that global-warming fearmongers are going to be proven wrong'



Related Links:

Peer-Reviewed Study finds ‘ancient’ Earth’s climate similar to present day — despite CO2 levels 5 to over 20 times higher than today! -- Geologists reconstructed Earth's climate belts between 460 and 445 million years ago and found 'ancient climate belts were surprisingly like those of the present' -- Also included 'a brief, intense glaciation'

Prominent Scientist Dr. Will Happer Tells Congress: Earth in ‘CO2 Famine’ – Feb. 25, 2009

Prominent Princeton Scientist Dr. Happer Testifies to Congress: ‘Warming and increased CO2 will be good for mankind’ -- 'CO2 is not a pollutant and it is not a poison and we should not corrupt the English language by depriving 'pollutant' and 'poison' of their original meaning'

New Paper: Danish Physicist Dr. Henrik Svensmark’s Cosmic Jackpot: ‘Svensmark stands the currently popular CO2 story on its head…Climate and life control CO2, not the other way around’ -- 'Some geoscientists want to blame the drastic alternations of hot and icy conditions during the past 500 million years on increases and decreases in carbon dioxide, which they explain in intricate ways. For Svensmark, the changes driven by the stars govern the amount of carbon dioxide in the air. Climate and life control CO2, not the other way around...'The UK Royal Astronomical Society in London publishes Svensmark's latest paper'

Ice Age At 2000+ PPM CO2: ‘Earth experienced an ice age 450 million years ago, with CO2 somewhere between 2000 and 8000 ppm’

Flashback: Climate Depot Fact Sheet on CO2: Rising CO2 a Boon for Biosphere – Earth in ‘CO2 Famine’

Meteorologist Tom Wysmuller: ‘The Recent Temperature and CO2 Disconnect’ -- Even going back ten centuries, there have been total disconnects between temperature and the CO2 impact, or lack thereof.  From 1000AD to 1800, over a period of relatively stable CO2 values that bounced around the 280ppm level, temperatures plummeted in the Little Ice Age (LIA) and then rebounded over a century later.  CO2 values neither led nor followed the temperature declines and recoveries…CO2 seems to have had little impact in EITHER direction on the observed temperatures over that 10k year period…If CO2 is to be considered a major driver of temperatures, it is doing a counterintuitive dance around the numbers.’

‘Temperature drives CO2’

Ivy League geologist Dr. Robert Giegengack, the chair of Department of Earth and Environmental Science at the University of Pennsylvania, spoke out against fears of rising CO2 impacts promoted by Gore and others. Giegengack does not even consider global warming among the top ten environmental problems.

“In terms of [global warming’s] capacity to cause the human species harm, I don’t think it makes it into the top 10,” Giegengack said in an interview in the May/June 2007 issue of the Pennsylvania Gazette. (LINK) Giegengack also noted “for most of Earth’s history, the globe has been warmer than it has been for the last 200 years. It has rarely been cooler.” (LINK) “[Gore] claims that temperature increases solely because more CO2 in the atmosphere traps the sun’s heat. That’s just wrong It’s a natural interplay. As temperature rises, CO2 rises, and vice versa,” Giegengack explained. “It’s hard for us to say that CO2 drives temperature. It’s easier to say temperature drives CO2,” he added. (LINK) "The driving mechanism is exactly the opposite of what Al Gore claims, both in his film and in that book. It's the temperature that, through those 650,000 years, controlled the CO2; not the CO2 that controlled the temperature," he added. (LINK)

“Certain ‘feedback loops’ naturally control the levels of greenhouse gases in the atmosphere. A warmer temperature drives gases out of solution in the ocean and releases them,” he continued. “[Today, humans] are putting 6.5 billion tons of fossil-fuel carbon into the atmosphere, and only 3.5 billion is staying there, so 3 billion tons is going somewhere else. In the past, when the Earth’s climate rose, CO2 came out of the ocean, the soils, and the permafrost. Today as temperatures rise, excess CO2 is instead going into those and other reservoirs. This reversed flux is very important. Because of this, if we reduced the rate at which we put carbon into the atmosphere, it won’t reduce the concentration in the atmosphere; CO2 is just going to come back out of these reservoirs ... If we were to stop manufacturing CO2 tomorrow, we wouldn’t see the effects of that for generations,” Giegengack said.





By: Marc Morano - Climate DepotMay 10, 2013 5:58 PM



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Post time 2013-5-12 10:43:24 |Display all floors













all Rat outputs are full of ignorance, laziness and lack of research

All prepared for cyberspace where lay people dont realise they are frauds and cheats.




I've made my living, Mr. Thompson, in large part as a gambler. Some days I make twenty bets, some days I make none. There are weeks, sometimes months, in fact, when I don't make any bet at all because ...

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Post time 2013-5-12 10:48:47 |Display all floors
In the past the earth regulated the CO2 content of the atmosphere, through higher vegetation growth. But now with the jungles and forests diminishing the earth is incapacitated, and cannot adequately respond.

I say that, while I am still skeptical regarding the influence of CO2 on global warming.
The world needs more idiots like me, all the others think they are clever.

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Post time 2013-5-12 12:50:19 |Display all floors
TheHermit Post time: 2013-5-12 10:48
In the past the earth regulated the CO2 content of the atmosphere, through higher vegetation growth. ...

A hermit who does not understand science.......what relevance what you think?
I've made my living, Mr. Thompson, in large part as a gambler. Some days I make twenty bets, some days I make none. There are weeks, sometimes months, in fact, when I don't make any bet at all because ...

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Post time 2013-5-12 12:53:11 |Display all floors
sansukong Post time: 2013-5-12 10:10
Relax! Celebrate 400 PPM Of CO2! Bloomberg News features Climate Depot’s Morano: ‘The Earth has ha ...







Your plagiarisms........


What you learn this time, using your own words?

Not scholarly enough to write a proper sentence?



I've made my living, Mr. Thompson, in large part as a gambler. Some days I make twenty bets, some days I make none. There are weeks, sometimes months, in fact, when I don't make any bet at all because ...

Use magic tools Report

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