That was because your "computation" was so inane that any logical person would not stoop that low in their thinking. Your "computation" had nothing to do with the GHE. It was a simple calculation of what the temperature the earth would be if there was no atmosphere at all. That's hardly relevant.
It was, according to you an accurate representation of the fundamental mechanism of the greenhouse effect...now your claim is that it was something else entirely...and it is clearly titled "energy balance at the earth's surface...not the temperature of the earth with no atmosphere...lies upon top of lies topped off with a great big cherry of ignorance....you still don't have a clue...
I was not referring to the University diagram and analysis as being inane.
I was referring to your inane computation that lead to a value -18C. That has nothing to do with the diagram nor the GHE. Yet you thought it did.
Sorry guy...I didn't misrepresent or mis understand anything....I simply put what the graphic was saying into language that you could finally understand and you rebelled against the truth....but hey, I don't mind doing it again, at an even simpler level for you....
At the university of washington site, they begin with this graph.... a single input..the sun...a single radiator, the surface of the earth...it assumes no atmosphere....simple radiation in...radiation out.....if you see anything other than that, then you know even less than I had given you credit for and after the past few days, that is very little....
See the equation at the bottom of the page? The 239.7 wm2 is representing the radiation going out from the surface...it isn't claiming any temperature that the earth would be without an atmosphere...it is simply stating what the earth radiates out after it has absorbed the incoming radiation from the sun...note according to their model...239.7 wm2 is coming in from the sun. You understand that...or do you think it says something else?
And your claims that I was somehow being dishonest for calculating a radiating temperature from the radiating wm2 from the various radiators is nothing more than bullshit because that is precisely what they have done in this graphic and the next...see the T = (239.7)/(5.67 x 10^-8) = 255K...that is nothing more than calculating the radiating temperature of the radiation leaving the earth's surface...an object radiating at 239.7 wm2 has a radiating temperature of 255K 255K is -18.15 degrees C...
Then they move on to this graphic...which is according to them and you, describing the basic mechanism of the greenhouse effect as described by climate science... Not much has changed on the graphic...except they have now added radiation from the atmosphere......the real 239.7 wm2 radiating out to space through the atmosphere...and the fantasy 239.7 wm2 radiating back to the earth from the atmosphere which we will "ASSUME" is real for the purpose of this discussion...
Now look at the equation at the bottom of the graphic... T=(239.7 + 239.7) / (5.67 x 10^-8)....again, all this equation is stating is that they are adding the 239.7 wm2 leaving the earth to the 239.7 wm2 radiating down from the atmosphere...and the graphic above says clearly that the 239.7 wm2 equals a radiating temperature of 255K or -18.15C....I suppose I will do the addition for you also...math doesn't seem to be your best thing...
(239.7 + 239.7) = 479.4....run that through the SB equation and you get a radiating temperature of 303K...or 29.85 degrees C...that is all that the equations say and according to the source, it is a simple, bare bones, description of the greenhouse effect...you can certainly make the model more complicated, but when you begin with such a terribly flawed basic model, you ca't make it complicated enough to fix it...the model doesn't describe reality and no matter how complicated you make it, it is never going to describe reality....