Agence France-Presse: China, the world's biggest polluter of greenhouse gases, is "quite confident" that a historic universal accord will be struck Saturday to rein in climate change, senior envoy Liu Zhenmin said. "We are quite confident, I think with joint efforts by tomorrow we shall have a Paris agreement," said Liu, the deputy head of the Chinese delegation to the 195-nation UN talks in Paris, which have run past a Friday deadline for a deal.