Disputing the link between air pollution and a variety of health harms is not only dangerous, it runs contrary to what every expert affirms: that air pollution causes debilitating and life-threatening respiratory illness, heart and lung diseases, and cancer. Access to clean air should be a right that all Indians enjoy, yet the air pollution ravaging our cities puts lives in peril. Since this danger is also preventable, clean air should be the priority of our government’s health and public policy agenda. Credible disagreements over the effect air pollution has on human health have long been put to rest. Leading medical researchers have formed consensus over the severe harms air pollutants—including particulate matter smaller than 2.5 micrometres (PM2.5), sulphur dioxide, nitrogen oxides, carbon monoxide, tobacco smoke and ozone

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