In a UN report, the world's leading climate scientists have issued a stark warning: the world must act now to secure a liveable future. But has the UN been successful in helping to mitigate the looming climate catastrophe?

Join host Nick Clark.

Guests: 

Saleemul Huq - Director of International Centre for Climate Change and Development.

Doug Parr - Greenpeace chief scientist in Oxford.

Maruice Onyango - Regional Head of Disaster Risk Management, Plan International.