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Is there an average temperature of your bathtub full of water? Now, we might argue over how to do the averaging (Spatial? ), but you can compute an average, and you can monitor it over time, and see if it changes.The exercise is only futile if your sampling isnt good enough to realistically monitor changes over time.Climate models address a spherical, rotating, Earth with a day-night (diurnal) cycle in solar illumination and atmospheric Coriolis force (due to both Earth curvature and rotation).Yes, you can do a global average of energy flows and show them in a flat-earth cartoon, like the Kiehl-Trenberth energy budget diagram which is a useful learning tool, but I hope most thinking people can distinguish between a handful of global-average average numbers in a conceptual diagram, and a full-blown 3D global climate model. THERE IS NO SUCH THING AS A GLOBAL AVERAGE TEMPERATURE Really?!

S., but we have useful estimates of how the number has increased in the last 50-100 years. Because the thermal IR emission in response to temperature is what stabilizes the climate hotter things get, the more energy is lost to outer space. So why am I trying to stir up a hornets nest (again)?

So, yes, a cooler body can make a warm body even warmer stillas evidenced by putting your clothes on. CO2 CANT CAUSE WARMING BECAUSE CO2 EMITS IR AS FAST AS IT ABSORBS. When a CO2 molecule absorbs an IR photon, the mean free path within the atmosphere is so short that the molecule gives up its energy to surrounding molecules before it can (on average) emit an IR photon in its temporarily excited state. Also important is the fact that the rate at which a CO2 molecule absorbs IR is mostly independent of temperature, but the rate at which it emits IR increases strongly with temperature. This one is a little more subtle because the net effect of greenhouse gases is to cool the upper atmosphere, and warm the lower atmosphere, compared to if no greenhouse gases were present.

There is no requirement that a layer of air emits as much IR as it absorbs…in fact, in general, the the rates of IR emission and absorption are pretty far from equal. Since any IR absorber is also an IR emitter, a CO2 molecule can both cool and warm, because it both absorbs and emits IR photons. ADDING CO2 TO THE ATMOSPHERE HAS NO EFFECT BECAUSE THE CO2 ABSORPTION BANDS ARE ALREADY 100% OPAQUE.

Dating technique which makes use of the fact that atmospheric carbon dioxide includes a free adult bbw dating percentage of radioactive 14C, created by cosmic radiation.

Within archaeology it is considered an absolute dating technique. When researchers find a bone or artifact, how do they know how old it is?

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