Cleaning up toxic waste at a single lake or river site
It wasn’t a single river and single lake. It was everywhere. There wasn’t a clean river, large lake or bay in the US. The examples I gave were only the most publicized.
The air in all cities, everywhere, was so polluted the moths evolved to be black.
ocean.si.edu/ocean-life/…/signs-recovering-harbor…!
…jhu.edu/…/baltimores-swimmable-harbor-movement#%….
californiasun.co/photos-when-l-a-smog-was-so-bad-…
We’re at 415 parts per million in CO2 concentrations. That’s orders of magnitude in difference, and the carbon that is already present will take multiple human lifetimes to be removed via natural means.
Unchecked CFC’s would have resulted in the sterilization of the entire planet. In the 1970’s pollution was at a level where all life was destroyed in many local ecologies. It wasn’t “It’s too hot here so native species died out and were replaced with desert species.” It was complete annihilation of all life in the area.
Global warming means a few billion die. It’s an extremely serious problem but we are improving.
