OP's biggest problem is his smoking. But it's a benefit to everyone whose air he doesn't pollute.
Ammonia is still used as the refrigerant on large installations, whole buildings refrigerated to store meat, other foods. It's more efficient than freon and way cheaper - but spills are dangerous so have to be monitored. And it's the refrigerant in propane refrigerators which rely on its latent heat of solution: a propane flame boils ammonia out of water, which is then allowed to cool to room temperature (or near) then absorbs heat when water reabsorbs it.
And may cure itself of its infestation of humans.
I remember seeing signs in out-of-the-way places near the Mexican border advertising R-12; perhaps a trip to Mexico can cure your R-12-ness. You can make our atmosphere as healthy as you make your lungs.
Propane is an effective refrigerant; try charging you AC with it. (Joke! When it leaks your engine will catch on fire, why it isn't used as a refrigerant. Freon is ethane with chlorine and fluorine replacing many of the hydrogens, which makes it not flammable.)
I saw an evaporative cooler on a car; it was mounted in the window and caught the wind.