Air pollution, Smog-filled health nightmare, in India. 空氣污染, 霧霾繚繞的健康噩夢

In this Nov. 24, 2015 photo, commuters walk as vehicles move at a traffic signal in New Delhi, India. Over the last decade the city's air pollution has grown so rapidly that the cold weather turns the city into a grey, smog-filled health nightmare. New Delhi has earned the dubious distinction of being the world's dirtiest city, surpassing Beijing, once the poster child for air pollution. (AP Photo /Tsering Topgyal)
India Struggling to Breathe - ABC News
http://abcnews.go.com/International/photos/india-struggling-breathe-35575193
India Photos and Images - ABC News
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