Delhi-NCR's toxic air is not just a seasonal inconvenience — it is a growing public health emergency. From asthma, lung cancer and heart attacks to strokes, diabetes, thyroid disorders and neurological impacts on children, doctors are warning of a wide range of health risks linked to air pollution. Research has also associated polluted air with premature births and low birth weight. As evidence of the health impact mounts, the question is whether India will treat the pollution crisis with the same urgency it brought to the COVID-19 pandemic. This is a wake-up call for collective action.