Smog blankets and fogs have posed a health risk in major cities across China. The pictures show Urumqi, the capital of Northwest China’s Xinjiang Uygur Autonomous Region, Feb. 23, 2016.
The city reported a severe air pollution considered hazardous on Tuesday.
Is it human nature to be destructive?

Urumqi, the capital of Northwest China’s Xinjiang Uygur Autonomous Region.
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