Can't help myself.. Gotta respond to the BentWire:
Name calling. I like it. When one is frustrated over an inability to prove a point, one calls names. Old rocks will get a kick out of your use of his particular pejorative for me.
For a guy who mindlessly badgers others about scientific method and proofs and process --even when they have no idea of the ability of whom they are lecturing
Exactly what indications have you given of your ability? You haven't discussed any physical law that predicts your claims. You repeat endlesly that CO2 can retain energy, which it can't. What am I supposed to gather regarding your abilities?
1) Please stop asserting this.. I've not made any such remark and indeed I've notified you of that.
When you make the claim that the cooler atmosphere can heat up the warmer earth, math is required if you expect to be taken seriously.
Really? That's odd. You said precisely that
here:
flacaltenn said:
Of course it's gonna re-radiate some of it. Maybe MOST of it at IR wavelengths. That's the "TRANSMISSION Quotient" shown in the graph. The question isn't how much filtering protection the CO2 offers from the sun's rays, but it's ability to deflect EM (IR) radiation FROM the surface -- back TO the surface or directed downwards in the atmosphere. OR to retain heat in the molecules themselves from either incident sunlight or surface reflected IR.
flacaltenn said:
2) me thinks you're confusing EM IR radiation with heat because you make the following statement using BOTH interchangeably.
in spite of the presence of more atmospheric CO2 because CO2 does not absorb and retain IR.
You going to argue that IR isn't thermal radiation? And since we are talking warming here, I assumed that there would be no nitpicking over a word choice that conveys the same meaning but is in the more common language. Heat is, after all the energy that is conveyed from a warm object to a cooler object. Did I make any spelling errors or use incorrect punctuation?
flacaltenn said:
to find the heat capacity of CO2 -- right there in front of your face.. See .8444 Kjoule/kg-degK. That's your mantra for tonight. Compare it to other gases you find the table. That's the key to understanding the real reason for those satellite results and what else to look for to confirm them.
Did you even notice that the magical mystical heat capacity of CO2 is 83% of the heat capacity of air? It is less than 6% of hydrogen, less than nitrogen or oxygen.
And specific heat does not speak to a gas's capacity to store heat. Specific heat only refers to the amount of constant heat required to raise the temperature of one kilo of the gas by one degree. Turn off the heat and the gas goes right back to its original temperature. No lag time as would be the case with water vapor because no heat is retained.
In short, specific heat is nothing more than a particular substance's ability to absorb heat. It doesn't speak at all to that substance's ability or inability to retain heat. CO2 can not, does not, never has, nor never will be able to trap and retain heat. No argument has been made regarding the fact that it absorbs heat. It most certanly does. It does not, however trap, retain, or store it. It emits precisely the same amount of heat that it absorbs.
From your engineer's toolbox:
"The specific heat represents the amount of energy required to raise 1 kg by 1oC, and can be thought of as the ability of a substance to absorb heat. Therefore the SI units of specific heat capacity are kJ/kg K (kJ/kg oC). Water has a very large specific heat capacity (4.19 kJ/kg oC) compared with many fluids."
Absorption and retention are two very different things.
absorb - physics - to take in (all or part of incident radiated energy) and retain the part that is
not reflected or transmitted
In the case of CO2, the exact amount of energy that is absorbed is transmitted.
retain - to keep possession of.
The bottom line is that you are making assumptions that simply aren't valid. You seen to believe that because a gas can absorb radiation, that somehow that means that it can hold on to some of that radiation. It doesn't. I have ever argued that CO2 doesn't absorb IR. It is that fact that got the gas the name greenhouse gas. Unlike a greenhouse though, CO2 can not store, retain, or trap energy. It is a conduit. Energy in, exactly the same amount of energy out. Specific heat only refers to the amount of heat (constantly applied) to warm a given amount of the substance by 1 degree. Turn off the heat and it returns to its former temperature at the speed of light because that is the speed at which it is emitting any radiation that it absorbs.