Guardian: A new global treaty on climate change is unlikely unless negotiations accelerate, the UN’s top climate change official warned today. Speaking at the close of another meeting intended to lay the ground for a new deal, Yvo de Boer, head of the UN climate secretariat said there was a real risk of failure. According to Reuters, he said: "If we continue at this rate we’re not going to make it." De Boer said the week-long meeting in Bonn had made only "selective progress" towards trimming a …