CFC’s are great at coolimg things as long as you do not care about having an ozone layer.
They’re even fine if you care about the ozone layer so long as you never ever let any leak. Until the coolant leaks the CFCs are cycling in a closed system in which they can’t do any damage. The problem is that “not letting any leak” is harder than it sounds, and the newer coolants just don’t do the job as well.
It’s like how asbestos tiles are fine until they get damaged, and then they fuck the lungs of anyone unfortunate enough to breathe in a tiny bit of it.
They’re even fine if you care about the ozone layer so long as you never ever let any leak. Until the coolant leaks the CFCs are cycling in a closed system in which they can’t do any damage. The problem is that “not letting any leak” is harder than it sounds, and the newer coolants just don’t do the job as well.
It’s like how asbestos tiles are fine until they get damaged, and then they fuck the lungs of anyone unfortunate enough to breathe in a tiny bit of it.