At the IEA Clean Coal Centre, we check regularly on performance data for coal-fired power plants worldwide. So we were very surprised when we found the Guardian newspaper declared that ‘China's largest coal power plant violating air pollution levels every week’ (18 December 2014). We were even more surprised when we discovered the article was claiming that it was the Waigaoqiao plant in Shanghai, which was failing to meet the new NOx emissions standards and relating this to the formation of dangerous fine particulate matter pollution. The journalist then linked this poor performance to the fact that the . . .