Due to the poor economy, electric and hybrid cars are in great need these days.  However, these cars also will come at a cost.  They will strain scarce resources for water, according to a new study.

Every mile that is driven using electricity consumes approximately three times the water than a car using petrol.  Sciencedaily reported this.

Michael Webber and Carey King calculated the usage of water, consumption, as well as withdrawal during refining of petroleum and generation of power in the United States.

This does not mean that the impacts on sources of water make the shift undesirable.  Instead, the increase in the usage of water resources should be a consideration when people are planning for an automotive economy that is plugged-in.

Every technological advance has potential downfalls.  Vehicles that lack petroleum are good in many ways for out environment, and our wallets.  Also good for your wallet, is an auto warranty that protects you in case new technology fails.  Also, it brings drivers peace of mind.