China's Wuhan city covered in mysterious haze

Young and old residents of the Chinese metropolis of Wuhan were advised to stay indoors on Monday after a thick haze blanketed the city of nine million people, official media said.

New study shows how trees clean the air in London

New research by scientists at the University of Southampton has shown how London's trees can improve air quality by filtering out pollution particulates, which are damaging to human health.

India leads world in pollution linked deaths: study

India leads the world in pollution-linked deaths followed by China and Nigeria, according to a report published Wednesday that estimated the global impact of contaminants in the air, water and workplace.

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