Ozone Hole was a scam.
This is the proof.
There are a number of people out there who are convinced that the whole thing was a scam because the patents were running out on the common CFC refrigerants. R-11, R-12, R-22, etc.
I think backhoe is one of them.
I have my doubts about the matter as well.
We certainly shot ourselves in the foot on air conditioning energy efficiency on the changeover.