The ozone hole was eventually determined to be a perfectly natural feature of the poles and acid rain was eventually debunked as research showed that PH in various bodies of water were impacted more by natural elements such as limestone than by airborne pollutants.
They also didn’t note that coal ash, the big thing they blamed for acid rain, is actually alkaline and not acidic.
And if there were no acid in rain, nothing would grow. Acid naturally occurs in rain. Whatever human activity adds is negligible.
“They also didn’t note that coal ash, the big thing they blamed for acid rain, is actually alkaline and not acidic.”
I’m an Engineer and worked for coal plants when the industry was much larger.
The acidity is actually caused by sulfur in the coal eventually creating sulfuric acid.
Acid is not a problem anymore because they use low-sulfur coal or SOx compounds are filtered. There is monitoring of the flue gas. Coal fly ash is also filtered nearly 100%.
We no longer breathe filthy coal dust or have acid rain because of environmental laws. When I left the industry, the stacks were crystal clear. I dont know about CO2 causing global warming but I definitely agreed with cleaning the air.