Beijing’s smog clouds city’s marathon
The Guardian, October 20, 2014
http://www.theguardian.com/environment/chinas-choice/2014/oct/20/beijings-smog-clouds-citys-marathon
Related:
报告称：雾霾成为我国入境旅游主要影响因素之一 (Report: Smog a leading cause for drop in foreign tourists to China)
Xinhua, October 20, 2014
http://news.xinhuanet.com/local/2014-10/20/c_1112901222.htm