DDT thinning bird eggs and causing near extinction of many species? Banning DDT resulted in recovery.
Companies dumping sewage, PCBs and industrial waste into our water, killing entire ecosystems? While not perfect, the Great Lakes and many rivers are worlds apart from where they were 50 years ago thanks to the EPA and Clean Water Act.
Same situation for the Clean Air Act.
Same for the Endangered Species Act.
Same situation for banning lead from paint and automotive gasoline.
Same situation for the ozone layer and the Montreal Protocol.
These movements were not unopposed. In most of those fights, business and conservative (in the traditional sense of the word) groups fought against the regulation needed to address the problem. Hell, the current GOP platform for 2024 is to completely gut the EPA's authority within the first year.
https://www.politico.com/news/2023/07/28/far-right-climate-p...
Climate change is much more complex than any of the mentioned issues and will take much more global cooperation. Crazy to somehow blame this on environmentalists just because the effects are larger scale and slower-changing.