On India Matters, Dr Sanjeev Bagai calls Delhi's air pollution a "national medical emergency", warning of its potentially devastating impact on children. He raises concerns about respiratory illnesses, impaired lung development, neurological risks and the vulnerability of newborns and pregnant women. Citing figures on pollution-related deaths and health risks, he questions the lack of urgent action, saying the consequences of toxic air are preventable. "Why are we not acting?" he asks.