Toxic smog engulfs northern India, Pakistan
Pakistan's Lahore remained the world's most polluted city, while visibility in parts of northern India fell to zero. Seasonal ...
India's toxic smog hides Taj Mahal, delays flights
By Sakshi Dayal NEW DELHI (Reuters) -Toxic smog obscured India's famed monument to love, the Taj Mahal, as well as Sikhism's ...