[Cribb]

Re: " It reflects visible light, and also radiates heat back out with a frequency that allows the infrared waves to pass unimpeded through the atmosphere, back out into space."

This contrary to what I have been led to believe. That is, the alpha, beta, gamma rays are short waves and when they strike earth, they elongate when they bounce back - that's why you're more apt to get sunburned on a cloudy day because they wont penetrate the clouds and therefore they resonate between the clouds and earth, kind of like a microwave.

[steve86]

alpha, beta, gamma rays

Have nothing whatsoever to do with the topic here.