Are electric cars the new 'diesel scandal' waiting to happen? They generate polluting particles just like petrol vehicles, are not even that cost-effective and, as one expert finds, will not save the planet

What's the best way for the United Nations to help the developing world? Right now, the organisation is in the process of setting its global development agenda for the next 15 years - and the most important thing to do is to set goals which it can actually achieve, and to work out what the best way to spend its money is. Economics may well show the way.

Bjorn Lomborg gave a TED Talk in New York on How Much Have Global Problems Cost the World? A Scorecard from 1900 - 2050. He presents a new way to compare global problems and shows that the world is becoming a better, more livable place.