Age: After a rocky, sometimes controversial six years, climate experts have settled on their message to the world's governments: climate change can and must be stopped but the window of opportunity is closing fast. In Copenhagen on Sunday, the United Nations' Intergovernmental Panel on Climate Change (IPCC) produced its final report before next year's summit in Paris where a new global agreement on climate is due to be hammered out. The IPCC's fifth "synthesis report" pulls together the latest climate...