posted on Apr, 26 2013 @ 08:34 AM
Originally posted by Mez353
What this study says is that CO2 enables a cooling effect within this region by sending back UV radiation which is dominant in this layer. So, MC and
others, you are completly making up the twaddle about IR only, just as you normally do. Get the facts about the sky above you, how the sun works, what
stops us frying and then get back to me.
Yeah. Trying to edumacate climate deniers on anything related to atmospheric science is definitely so damn hopeless lol. They don't understand the
science to begin with (which is fine - most of us don't - I just hate how they love to come here and try to fake like they suddenly do), so they'll
just look up 'thermosphere' on wikipedia (or worse - some denier website), glean something about UV radiation, and fill in the blanks of their own
ignorance with whatever it is they want to believe.
CO2 absolutely does not "send back UV radiation", as is clear from the graph I posted on the last page:
UV radiation starts at ~400 nm (0.4 microns) and goes to shorter wavelengths from there. CO2's absorption bands simply do not reach that far.
The reason CO2 creates a cooling effect in the thermosphere is because it re-radiates IR energy generated from processes such as ionization, Joule
heating, etc that result from all those energetic solar particles colliding with stuff in the thermosphere. The thermosphere in general does absorb a
lot of UV radiation already, but that happens with or without CO2, and really has no bearing on carbon dioxide being highlighted as an important
So as I wrote in the first post - all this NASA data does is help us visualize, and completely validate what a powerful infrared
CO2 actually is.
Mez here can make up whatever 'twaddle' he wants (and naturally projection bias it back on people like me) but anyone can read
the link he posted himself
and see there is absolutely nothing in
there about CO2 "sending back UV radiation" at all, whereas infrared emission is repeatedly mentioned over and over again:
Earth's atmosphere lights up at infrared wavelengths during the solar storms of March 8-10, 2012.
“The thermosphere lit up like a Christmas tree,” says Russell. “It began to glow intensely at infrared wavelengths as the thermostat effect
A surge of infrared radiation from nitric oxide molecules on March 8-10, 2012, signals the biggest upper-atmospheric heating event in seven