“For regulation” is a pretty weird take, but it is self regulating (in the absence of pollution from humans). When the ozone layer is thin, more UV gets through from the sun. UV from the sun ionizes O2 and splits it apart, creating oxygen free radicals which recombine and create ozone. Thus, less ozone leads to more ozone, hence self-regulation.
“For regulation” is a pretty weird take, but it is self regulating (in the absence of pollution from humans). When the ozone layer is thin, more UV gets through from the sun. UV from the sun ionizes O2 and splits it apart, creating oxygen free radicals which recombine and create ozone. Thus, less ozone leads to more ozone, hence self-regulation.