A climate summit in Durban has ended with agreement to bring down carbon emissions to save the planet.

A deadline of 2020 could yet prove a cop-out. But do we need to be so concerned about emissions? Is fear of global warming holding back much-needed development?

In this month’s Interrogator, I grill George Monbiot, environmental activist, and Claire Fox, director of the British think-tank, the Institute of Ideas.

Listen here.