Elimination or reduction of CFCs did have a drastic effect on first reducing the ozone layer depletion and then reversing it.
By eliminating CFCs we gave natural cycles a chance to rebuild the layer
ozone-depleting chemicals like chlorofluorocarbons (CFCs) were destroying the ozone layer. When the world adopted the Montreal Protocol and drastically cut CFC use, the ozone layer started to recover.
I am not convinced. Pretty hard to point to a control data set to prove that too. There have been some pretty strong arguments all along that the ozone hole was more a natural part of the ebb and flow of the ozone layer, and that volcanic activity plays the largest role in depletion.
But I am skeptical of most of what the globalist authoritarians are pushing, so I do admit to an automatic bias against them.
Stop saying accurate and reasonable things. You’ll get a reputation.
One counter-arguement I have heard regarding CFCs “eating” O3 is that the specific gravity of CFC is too heavy to float up into the upper atmosphwre where the O3 layer is located.
NASA reported in 2013 that over twenty years after the Montreal Protocol there was no appreciable change in the ozone hole, despite steady natural purging of the HFCs from the atmosphere. The fact is, ozone holes are a natural occurrence which have probably alway been with us, which fluctuate seasonally and with the weather.
This whole “manmade ozone hole crisis” was one of the early fake narratives which set the stage for the granddaddy of all fake narratives.