I'm very interested in knowing about how much energy would be lost to the atmosphere if you fired a laser or maser into space. I know the laser would probably diverge quite a bit over that distance, and the photons would probably lose a lot of their energy traveling through the medium of air. Just to be specific let's say the boundary to space is the Karman Line in this case (100km). The difference between a laser and maser is also important because of the absorption spectrum of the atmosphere.
The reason I'm curious about this is if you fired a powerful array of lasers or masers into the atmosphere powered by the heat in the atmosphere I'm curious how difficult it would be to provide a significant alteration to the effects of global warming, by moving excess energy into space.