The Forbidden City is shrouded with smog in Beijing, capital of China, Dec. 20, 2016. Severe smog lingered in Beijing and many other areas in north China on Wednesday, with over 20 cities issuing red alert for air pollution. (Xinhua/Shen Bohan)
Tourists take selfies in the smog-shrouded Forbidden City in Beijing, capital of China, Dec. 20, 2016. Severe smog lingered in Beijing and many other areas in north China on Wednesday, with over 20 cities issuing red alert for air pollution. (Xinhua/Shen Bohan)
Beijing, capital of China, is enveloped in smog Dec. 20, 2016. Severe smog lingered in Beijing and many other areas in north China on Wednesday, with over 20 cities issuing red alert for air pollution. (Xinhua/Shen Bohan)
Residents wearing masks practice dance at the smog-shrouded Tiantan Park in Beijing, capital of China, Dec. 20, 2016. Severe smog lingered in Beijing and many other areas in north China on Wednesday, with over 20 cities issuing red alert for air pollution. (Xinhua/Shen Bohan)
