There was actually a very clever paper on nano materials which, instead of emitting IR on the blackbody spectrum, emit it in a band the atmosphere is transparent to. Reversing the greenhouse at ground level.

Oh huh, that's interesting... So we could just lay down large sheets of that material on a desert or something?

Or cover all non- solar generating roofs with it, and all roads...

We could get it from Europe (moon),anyway this would result in further rise of the sealevel.