The Jinshanling Great Walls shrouded in smog in Chengde, Hebei Province of China on February 24, 2014. (ChinaFotoPress/Getty Images) Want to see your images in our Photo of the Day posts? Use Flickr ...
BEIJING--Authorities issued their highest warnings for fog and haze on Tuesday as smog enveloped major cities in northern China, warning the public that visibility could drop to less than 50 ...
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