Natural History Museum Online Earth Debate: Beyond GDP - How Can We Measure Progress?

In the run-up to June’s Rio+20, the Natural History Museum is running a series of web-based debates on the following topics:  

• Green cities in a green economy – how to pioneer a sustainable transition? 14 March
• Food security – how do we feed 9 billion people in 2050? 11 April

A panel of experts, chaired by Richard Black, the BBC’s environment correspondent, will discuss these issues.