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I didn't know the answer to this, but looking in to it, it seems that it won't be a problem. The ozone hole was created mainly by CFCs and they have been regulated out of existence for the most part. So the ozone layer is expected to bounce back. Hydrogen also causes ozone depletion, but not as bad as CFCs so the net result is the ozone situation will continue to improve.
I'm no expert though.
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