Imho the whole history around TEL [0] is a pretty sad example of human hubris and our tendency to underestimate the negative impacts of our actions.
[0] https://en.wikipedia.org/wiki/Tetraethyllead#Controversy_and...
[0] https://en.wikipedia.org/wiki/Tetraethyllead#Controversy_and...
By 2000, the TEL industry had moved the major portion of their sales to developing countries whose governments they lobbied against phasing out leaded gasoline.
If we want real change we are going to have to realize that 99.9% of humans are lazy, selfish, and err on the side of evil.