Air pollution in north India should be a national health emergency. Because studies show that breathing this toxic air day after day is actually shortening our life span by several years. People who have never smoked a cigarette are getting lung cancer, children are facing respiratory problems on an overwhelming scale. The Delhi government is patting itself on the back saying air pollution post Diwali has not been as bad as last time, but the devil lies in details. When will pollution become a top political issue in India?