Massive Pollution In Big Cities: In Search Of Lasting Solution

Air pollution levels in Delhi spiked today. But besides Dussehra celebrations contributing to it, the annual stubble fire problem has also begun to rear its head. The Delhi government has estimated that stubble-burning will increase by the end of this month. Not just in Delhi, in Mumbai too the air quality index (AQI) has worsened. What can be a lasting solution?