system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How can ozone layer repair itself?
gpt
The sun's rays split O*_2_* molecules into free Oxygen Atoms, these Atoms bind to other O*_2_* atoms to form O*_3_*. It's constantly doing this and the ozone molecules are also constantly breaking down. Just in the past we released a bunch of stuff that caused it to break down faster. Now that we've banned a lot of those chemicals, they aren't being released, so the Ozone layer isn't breaking down as fast as it used to.