Agence France-Presse: Air pollution in China’s cities remains very serious, state media on Thursday quoted a minister as saying, amid an ongoing battle to clean up the skies in the world’s largest coal-consuming nation. “There is the potential for serious air pollution incidents to happen, and the air environment situation is extremely severe,” environmental protection minister Zhou Shengxian told parliament, the official People’s Daily said. “The difficulties in managing air pollution are …