“What in the world is wrong with fossil fuels?”
According to the EPA:
Sources and Solutions: Fossil Fuels
[...]
“When fossil fuels are burned, they release nitrogen oxides into the atmosphere, which contribute to the formation of smog and acid rain.”
[...]
https://www.epa.gov/nutrientpollution/sources-and-solutions-fossil-fuels
Modern ICE vehicles do not emmit much NOx.
Uh huh
Volcanic eruptions create more acid rain in one day than decades of industrial activity.