BBC: After an all-night negotiating marathon, the 193-nation two-week conference ended at 1426 GMT on Saturday. "The conference decides to take note of the Copenhagen Accord of December 18, 2009," the chairman of the plenary session of the UN Framework Convention on Climate Change (UNFCCC) declared earlier in the day, swiftly banging down his gavel. Environmental campaigners and aid agencies branded the deal toothless and a failure. Robert Bailey, of Oxfam International, …