We are at 390 ppm Co2 now in Earths atmosphere. Why not restore it to 280 ppm Co2 like it was prior to the industrial revolution. If we were to shoot the moon with projectiles filled with (DRY ICE Co2) this could potentially Terra Form the moon. Solar powered rail guns could do the trick without creating more Co2. SEE:
Use the "Rail Gun" which is solar powered to shoot Earths Co2 to the moon to reduce Co2 here on Earth to cool the planet back down to pre-industrial revolution temperatures. The rail gun would emit zero greenhouse gasses since it is solar powered. Simple right? What that would do to the moon is give it a chance to grow trees which create oxygen and thus we can introduce all kinds of life there and have a nice vacation spot to go to. Basically take a weapon of war and create life with it. You like?