Remember when acid rain was a serious threat, or the hole in the ozone layer? While we still have some work to go, we’ve actually done a lot of good work to sto

Remember when acid rain was a serious threat, or the hole in the ozone layer? While we still have some work to go, we’ve actually done a lot of good work to stop these problems and begin reversing the damage that we caused. We can and do clean up after ourselves.