Climate News Network: The world has missed the chance to keep greenhouse gas emissions below the level needed to prevent the temperature climbing above 2°C, according to the British scientist who used to chair the IPCC, the Intergovernmental Panel on Climate Change. The scientist, Professor Sir Robert Watson, chaired the Panel from 1997 until 2002, when he was ousted after US pressure for his removal. Professor Watson says there is a 50-50 chance of preventing global average temperatures rising more than 3°C above their...