And how is the steam produced?.....hint: by burning SOMETHING, uh-oh...back to burning wood, gas, or whatever.
The same argument is true for electric vehicles. Where does the energy come from to charge the batteries? The power grid (assuming the grid can handle to additional demand).
Where does the energy from the power grid come from? Nuclear, coal, natural gas, solar?
The EV folks promote battery powered cars like a magical, environmentally friendly replacement for gas powered cars.
Granted, it may be cleaner depending on the energy source used to charge the batteries.
But the energy has to come from somewhere. Thats the dirty little secret that is not talked about.
Just because you don't see pollution coming out of the tailpipe, doesn't mean that pollution is not being produced to power cars.
Its just produced earlier in the supply chain.