UN climate chief Christiana Figueres yesterday warned that a string of weather calamities showed the deepening urgency to forge a breakthrough deal on global warming this year.

Time was running out today for agreement on a road map towards a new international deal on global warming, the UN’s top climate official warned.

Campaigners tonight urged countries to name and shame the US for its “blatant attempts to derail” the negotiations for an international deal on climate change.

Ministers gathering in Bali in an a bid to forge a “road map” for a new international climate change deal were urged today to reach agreement for the sake of the world’s population and future generations.