Stratospheric ozone is created by the summer sun, then it disappears during the winter when there is no sun at the poles. This cycle has been going on for millions of years. CFCs were never proven to affect stratospheric ozone, just like DDT was never proven to cause cancer, just like "man-made" CO2 was never proven to alter our climate, just like it has never been proven that witches caused the little ice age -- even though the little ice age ended after the successful killing of over 50,000 witches. Human ignorance is boundless.
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