General question - I also drive a gas powered vehicle, so I'm not asking from a "holier than thou" perspective.
What is the macro impact of choosing to use gas over hydro to power a vehicle? Eg increased health care costs due to poor air quality etc?
That's a good question. I don't worry about local air quality. Victorians enjoying year-round ocean breezes don't suffer air pollution like the residents of Bangkok or Mexico City. So not a big deal to me.
Western Canada hardly gets any gas from totalitarian regimes, most of it is domestic or from the US/EU. So I don't fret that some of the money from that $1.63 litre of gas I bought ends up in the Swiss bank account of some murderous dictator. I don't know, maybe I should worry more.
But we do use a lot of dirty oilsands gasoline from the prairie provinces and that's not great.