[little jeremiah]

And freon is “bad” because of some fakery “hold in the ozone layer”. Which turned out to be a natural phenomena that occurs now and then or maybe regularly.

[MileHi]

Freon became “bad” because the patents held by DuPont were about to expire. It was replaced by less efficient refrigerants that just happen to be DuPont patents.

[LittleLinda]

And freon is “bad” because of some fakery “hold in the ozone layer”. Which turned out to be a natural phenomena that occurs now and then or maybe regularly.
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Of course. We’ve been told that the new refrigerants are more flammable and more toxic if leaked. Government interference in business often makes things worse.