We live in a much, much cleaner world than we did 50 years ago. Legislation and environmental rules have worked. There are some areas where it could obviously be better, but also some areas where regulation is too strict (blocking housing, renewables, transit) and the system is evolving to address those.
I think the loss of local media has made it harder for misdeeds to come to light, but I don't want to throw up my hands and cede everything to commercial interests et al.