A "cooling fan", as used on many types of equipment, adds energy to the fluid flowing through it, warming it, but nonetheless helps to cool equipment by increasing the effectiveness of heat transfer across a thermal gradient.
The atmosphere of the planet loses a lot of heat to space. How effectively heat gets carried from the surface of the planet and out into space varies depending upon many factors. Conceptually, things which reduce the intermixing of different-temperature volumes of air would, all else being equal, likely reduce the effectiveness of the heat transfer. Of course, there are so many interacting feedback mechanisms that it would be impossible to honestly identify the exact balance of effects caused by any particular action.
Yes, a cooling fan adds energy to a fluid, but that’s not the same as a turbine, which extracts energy from a fluid.