08-31-2017, 09:01 PM
Radiative Equilibrium or Radiative Poppycock?
by Alan Siddons, August 2008
Excerpt:
What animates global warming concerns is an imaginary law of physics called "radiative equilibrium". Energy out must equal energy in, this“law” says. Which does sound plausible onthe face of it. In this view, however, if the lightemitted by a heated object is suppressed in someway, its radiant energy will increase past the level of radiant input until it breaks through the
barrier... in obedience to this “law”.
This notion originates from a long-ago misconception about how glass greenhouses work, thusthe family name this "effect" goes by. It was believed that glass blocked the passage of "dark radiation" (infrared) and kept storing energetic photons inside it. Once those photons had accumulated enough power to overcome the glass barrier, radiative equilibrium was achieved.
So this is the scenario: sunlight enters, heat is generated and dark light is emitted. This darklight is amplified because of the blockage and finally exits at the same magnitude as the entering sunlight. But only after the light "trapped" inside has raised the greenhouse's temperature. Since the barrier will keep raising the temperature until the barrier is broken, increasing the barrier's strength will get you any amount of internal heat you want. (If only that were true...)
It is 19th century poppycock. And here’s a telltale sign of it: Why do you always see a "layer of greenhouse gases" depicted
overhead in illustrations about the “greenhouse effect”, when in fact these molecules are at their densest concentration right at your feet?
LINK
by Alan Siddons, August 2008
Excerpt:
What animates global warming concerns is an imaginary law of physics called "radiative equilibrium". Energy out must equal energy in, this“law” says. Which does sound plausible onthe face of it. In this view, however, if the lightemitted by a heated object is suppressed in someway, its radiant energy will increase past the level of radiant input until it breaks through the
barrier... in obedience to this “law”.
This notion originates from a long-ago misconception about how glass greenhouses work, thusthe family name this "effect" goes by. It was believed that glass blocked the passage of "dark radiation" (infrared) and kept storing energetic photons inside it. Once those photons had accumulated enough power to overcome the glass barrier, radiative equilibrium was achieved.
So this is the scenario: sunlight enters, heat is generated and dark light is emitted. This darklight is amplified because of the blockage and finally exits at the same magnitude as the entering sunlight. But only after the light "trapped" inside has raised the greenhouse's temperature. Since the barrier will keep raising the temperature until the barrier is broken, increasing the barrier's strength will get you any amount of internal heat you want. (If only that were true...)
It is 19th century poppycock. And here’s a telltale sign of it: Why do you always see a "layer of greenhouse gases" depicted
overhead in illustrations about the “greenhouse effect”, when in fact these molecules are at their densest concentration right at your feet?
LINK
![[Image: Fullscreen%2Bcapture%2B9212011%2B81046%2BPM.jpg]](http://4.bp.blogspot.com/-JO_580PdQto/Tnqn7O87gzI/AAAAAAAAB1c/XXD7dCkMdxo/s400/Fullscreen%2Bcapture%2B9212011%2B81046%2BPM.jpg)