BBC: BBC environment correspondent Richard Black said this was a clear indication that things are not proceeding towards the kind of deal that the EU had wanted. Addressing the summit on Friday, President Obama said: "While the science of climate change is not in doubt, I think our ability to take collective action is in doubt right now, and it hangs in the balance." He said he had come to Copenhagen "not to talk, but to act". Unchecked, he said, climate change would pose …