That is the problem Mauser, there is minimal to none economical and reliable bulk power generation alternatives at the moment to replace coal, other than nuclear which has its own issues. Solar is getting better but still needs a base level backup. Wind has major issues as you need a big power grid and base power generation for it to work and it only works when the wind blows and where it blows so you have to get power to where it is needed.
So whilstever we are charging electric cars using power generated elsewhere we are both shifting the carbon emissions elsewhere plus creating losses getting the power to the car. Technology to use and store electric power economically in a car have outstripped the technology to economically produce power in an alternative method. Funnily enough if you read the Aussie author Matthew Reilly, he has a pseudo-kid's book called Hovercar Racer. In it he imagines dams built out from the Aussie coast that catch the tidal rise and fall and use it to generate power - need some left field thinking like this.