How large a part will electric vehicles play in solving our climate woes?

Singapore

THE growth of the battery electric-vehicle (EV) market has sped up considerably in recent years, as more and more come to view these cleaner-energy vehicles as being integral to the world's development of an environmentally sustainable future.

But, have the benefits of EVs been overstated - just how much of a difference will they make in global efforts to cut harmful emissions and mitigate climate change? And what obstacles lie in the way of their adoption, which could affect the impact they will have?