In the movie Batman when they blown up the pipes with all the steam in rained straight afterwards for two
hours because of all the steam going into the atmosphere. So no not really because the problems they will cause are much bigger than what they might solve. Its just car companies and governments who have got it wrong.
They would be better with LPG or methanol like Brazil. Electric cars are also a waist of time ,how many people run out of petrol each day around the world, its easy just to fill a can but if you run out of charge how do youn recharge the car