Rajendra Pachauri - Chair, International Panel on Climate Change

The post-Kyoto push for a new global treaty to cut greenhouse gas emissions is stalled, but scientists continue to issue stark warnings about rising global temperatures. Is it time for a radical reappraisal of the international effort to combat climate change? Stephen Sackur talks to the Chairman of the International Panel on Climate Change, Rajendra Pachauri. After almost 10 years in the post, has he got the ideas and the energy to reframe the climate change debate?