华北雾霾逼中国政府动真格 欧美应提供技术支持 (Heavy air pollution in Northeast China draws int'l attention, pressure builds on gov't to take actions)
Global Times, February 25, 2014
world.huanqiu.com/exclusive/2014-02/4856468.html
China's President Braves Smog, Takes Stroll in Old Quarter
Voice of America, February 25, 2014
http://www.voanews.com/content/reu-chinas-president-braves-smog-takes-a-stroll-in-old-quarter/1858631.html
雾霾持续加剧 石家庄居民状告环保局 (As smog intensifies, Shijiazhuang residents sue Environmental Protection Bureau)
British Broadcasting Corporation, February 25, 2014
http://www.bbc.co.uk/zhongwen/simp/china/2014/02/140225_china_smog_lawsuit.shtml