Reuters: China will aim this year to reduce its emissions of sulphur dioxide by 6 percent from their 2005 levels as it steps up efforts to fight pollution, its top environmental official said in remarks published on Tuesday. The official Xinhua news agency cited Zhou Shengxian, head of the State Environmental Protection Administration (SEPA), as saying that the government would close many small coal-fired power plants, as well as steel mills and cement plants, to cut emissions of the acid …