[The_Victor]

Here, sunlight breaks down the CFCs into products that react to produce chlorine, which in turn decomposes ozone.

Chlorine decomposes into O3?

Atmospheric alchemy.

[Red Badger]

Chlorine decomposes the O3......but they never tell you how a chemical, CFC, that is waaaaaay heavier than air gets waaaaay UP there to the stratosphere to do the damage, and just how it got to the Antarctic in the first place.............

[In veno, veritas]

You added an “into” in your statement. They just say it decomposes O3.