Mirror: A historic deal to combat climate change was close to being hammered out at the world summit in Copenhagen last night. After 11 days of often deadlocked and difficult talks, Gordon Brown said he was optimistic there would be an agreement to limit the rise in global temperatures to two degrees celcius. He said last night: "Today has been an important day. We are making progress. No doubt we’ll be working through the night. There’s no doubt there’s a great deal of work to be …