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Why the CO2 mirror analogy is wrong


Why the CO2 mirror analogy is wrong08-01-2016 14:59
Tai Hai Chen
★★★★☆
(1041)
A mirror reflects light back. CO2 does not. CO2 absorbs IR radiation at the 15 microns range. However, when CO2 re emits absorbed IR radiation, the range has to be at a longer wavelength of more than 15 microns. Therefore, whatever CO2 re emits, no other CO2 can re absorb, and so must go straight into space.

I think this is why the CO2 trapping of the greenhouse effect theory is not correct, which assumes continuous absorption and re emission of IR radiation like a pinball machine, making it difficult for IR radiation from the ground to go into space.
Edited on 08-01-2016 15:02
08-01-2016 15:17
IBdaMann
★★★★★
(4265)
Tai Hai Chen wrote: A mirror reflects light back. CO2 does not.

Correct.

Tai Hai Chen wrote: CO2 absorbs IR radiation at the 15 microns range.

CO2 has its own complete absorption signature that involves bands/ranges of frequencies.

Tai Hai Chen wrote:However, when CO2 re emits absorbed IR radiation,

Nothing "re-emits." What is absorbed is based on absorption signature. What is emitted is based on temperature, according to Planck's Law.

Tai Hai Chen wrote: I think this is why the CO2 trapping of the greenhouse effect theory is not correct,

Your wording is a little funny, i.e. "CO2 trapping of the greenhouse effect"

You are nonetheless correct that "greenhouse effect" is not correct.


.


Global Warming: The preferred religion of the scientifically illiterate.

Ceist - I couldn't agree with you more. But when money and religion are involved, and there are people who value them above all else, then the lies begin. - trafn

You are completely misunderstanding their use of the word "accumulation"! - Climate Scientist.

The Stefan-Boltzman equation doesn't come up with the correct temperature if greenhouse gases are not considered - Hank

:*sigh* Not the "raw data" crap. - Leafsdude

IB STILL hasn't explained what Planck's Law means. Just more hand waving that it applies to everything and more asserting that the greenhouse effect 'violates' it.- Ceist
08-01-2016 15:28
Tai Hai Chen
★★★★☆
(1041)
Because a CO2 molecule re emits at a longer wavelength that what it absorbs in the first place, this longer wavelength cannot be absorbed by any other CO2 molecule nor by the warmer ground.
08-01-2016 15:49
IBdaMann
★★★★★
(4265)
Tai Hai Chen wrote: Because a CO2 molecule re emits at a longer wavelength that what it absorbs in the first place,

This is a false statement. As I explained to you, what CO2, or any substance for that matter, absorbs is a function of its absorption signature, and what is emitted is a function of its temperature, specifically Planck's Law.

[img]http://tse2.mm.bing.net/th?id=OIP.Md9bff58e34697d60942a3c30956c0740H0&pid=15.1

Ergo, it is easily possible for a substance to absorb sufficient energy at one wavelength for it to arrive at a temperature that causes it to emit at either a higher or lower wavelength according to Planck's Law.

When you place a cup of water into a microwave oven, the microwaves that heat the water are of a longer wavelength than the infrared wavelengths that the water will emit when you are finished heating it.


.


Global Warming: The preferred religion of the scientifically illiterate.

Ceist - I couldn't agree with you more. But when money and religion are involved, and there are people who value them above all else, then the lies begin. - trafn

You are completely misunderstanding their use of the word "accumulation"! - Climate Scientist.

The Stefan-Boltzman equation doesn't come up with the correct temperature if greenhouse gases are not considered - Hank

:*sigh* Not the "raw data" crap. - Leafsdude

IB STILL hasn't explained what Planck's Law means. Just more hand waving that it applies to everything and more asserting that the greenhouse effect 'violates' it.- Ceist




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