CompuServe Messages

John, Well, you have to radiate at a wavelength at which air is mostly transparent. Moreover, you want to take precautions to insure that the cooling is largely radiative, without a large convective part. Clearly any scheme will transfer some heat to air, clouds, etc. However, the schemes we have now transfer heat largely to air, soil, etc, from which it is reradiated as low entropy heat radiation. By going to radiative cooling directly, lots less heat will stay on Earth. — Norm