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India's toxic air: How pollution and politics put millions at risk

Experts urge action after New Delhi is ranked smoggiest capital again

Girls walk to school through New Delhi's severe smog in November 2021.   © Reuters

NEW DELHI -- The approach of Earth Day this Friday is casting a spotlight on chronic, worsening air pollution in India's capital -- a deadly problem that continues to evade solutions as politics gets in the way. 

New Delhi earned the dubious distinction of being ranked the world's most polluted capital city for the fourth consecutive year in 2021, according to a report by Swiss air quality technology company IQAir.

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