How deadly is air pollution?

Aerial view of pollution being emitted from steel factories in Hancheng, Shaanxi, China

How deadly is air pollution?

Air pollution increases the risk of heart disease, strokes and lung cancer, causing millions of deaths every year.

01:07 - Source: CNN

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Aerial view of pollution being emitted from steel factories in Hancheng, Shaanxi, China

How deadly is air pollution?

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