Copenhagen summit

With two days left to secure a deal at the Copenhagen climate conference, the US attempts to break the deadlock by publicly backing a proposal that developed countries should provide poorer nations with $100bn per year by 2020 to fight climate change More podcasts

Ed Crooks, energy editor, discusses the possibility that the climate talks will break down before a deal can be reached

Andrew Ward, Nordic bureau chief, on the escalating tensions between rich countries and the developing world over how a deal should be structured. Read more at Copenhagen climate conference in depth

Ed Crooks, energy editor, summarises the latest discussions at the Copenhagen climate conference

Fiona Harvey, environment correspondent, summarises the latest discussions at the Copenhagen climate conference