NEWS: World still not united on tackling global warming, says UK’s special representative on climate change
Sir David King says clear carbon cutting pledges are essential at UN meeting, warning leaders must commit to attend
Leading climate diplomat Sir David King says some developing countries are too vague about whether they will sign UN treaty
Monday’s top five: Sir David King calls for climate action, US states confirm fracking pollution, thousands of bats killed by Queensland heat
Sir David King and Richard Layard say planet meeting 10% of its total energy needs from solar power in under two decades
Former Chief Scientific Advisor takes key Foreign Office post two years ahead of proposed UN emissions reduction deal