World leaders missed chance to tackle climate change, says economist

Nicholas Stern tells the Hay festival the global economic crisis was a perfect opportunity to make progress on climate change – and we missed it

Nicholas Stern (right) speaks to the French president, François Hollande, before an official lunch during climate finance day at the presidential palace in Paris on 21 May.
Nicholas Stern (right) speaks to the French president, François Hollande, before an official lunch during climate finance day at the presidential palace in Paris on 21 May. Photograph: Kenzo Tribouillard/AFP/Getty Images