First off, I think banning IC engines is a pie in the sky idea, but I also thought five years ago I'd never own a battery tool of any sort, and now I am replacing my Stihl gas powered stuff with battery powered stuff, they work good and are lighter. Did I do it to save the environment? No, I got sick of cleaning out carburetors when I forgot to drain the gas.
I agree that the climate religion folks tend to have a "sky is falling" attitude, however the same could be said for the anti-climate religion folks. The truth is somewhere in between.
I can remember the very first Earth Day, our high school science departments created a room that had the same atmospheric condition of LA smog, us farm boys were encouraged to walk in and see what it was like. Quite honestly, I doubted every thing that I was being told, but overtime a lot of what they said was determined to be true especially about the use of lead in our gasoline.
Facts can change over time as more data is developed. A prime example would be Einstein's theory of relativity, what was accepted as fact for many years is now possibly wrong.
When people start sprouting facts to me, I usually ask them where they're data came from and make up my own mind.
By the way, I gave you a good post earlier because I thought your response was well thought out and well written, it didn't seem to have any personal agenda or attack in it, I enjoy good discussion and like to be challenged.