How does it 're-radiate" it first if it hasn't absorbed it?lol
Oh fuck. I didn't know there were climatologists on JPP! (note sarcasm) ROTFLOL!!!
Do you have any scientific evidence to back your unscientific claim?
Here have a read:
http://au.answers.yahoo.com/question/index?qid=20071124154725AAIj7sA
CO2 (MW=44) is a bit heavier than nitrogen (MW=28) or oxygen (MW=32), but is nevertheless well-mixed in the atmosphere from top to bottom due to convection (wind) at the bottom and a long mean free path at the top. The earth absorbs visible light from the sun and re-radiates in the infrared. Initially the emitted photons are headed for space.(For more detail, look up the Plank black body distribution for sun and earth.) When CO2 absorbs infrared radiation, the molecule goes into an excited state. (For spectra and absorption cross sections, consult the HITRAN database.) If the excited molecule collides with another molecule, the energy from the excited state can be transferred into kinetic energy (heat) of the colliding molecules. Alternately, the excited state can relax by re-emitting an infrared photon. The emission process is isotropic, so on average half of the photons are emitted toward the ground and half toward space. The process of absorption and emission is repeated many times in the atmosphere, so the energy transport can be thought of as a diffusion process. The hindrance to energy flow into space is the greenhouse effect.
P.S> It looks like you are the ignorant one. This is climatology 101. Basically kindergarten knowledge for them!