Are Electric Cars Bad for the Environment?

by Leo Hickman (The Guardian) Academics in Norway have published a study arguing that electric cars can be more polluting than is widely assumed. Leo Hickman, with your help, investigates.

Published this week in the Journal of Industrial Ecology, the "comparative environmental life cycle assessment of conventional and electric vehicles" begins by stating that "it is important to address concerns of problem-shifting". By this, the authors mean that by solving one problem, do electric cars create another? And, if so, does this environmental harm then outweigh any advantages?
The study highlights in particular the "toxicity" of the electric car's manufacturing process compared to conventional petrol/diesel cars. It concludes that the "global warming potential" of the process used to make electric cars is twice that of conventional cars.
The study also says - as has been noted many times before - that electric cars do not make sense if the electricity they consume is produced predominately by coal-fired power stations. READ MORE Abstract