NASA says crop fires in northern India are increasingly being lit later in the day, complicating air quality monitoring efforts. https://english.mathrubhumi.com/news/india/nasa-late-stubble-burning-india-air-quality-dpb4369s?utm_source=dlvr.it&utm_medium=mastodon #StubbleBurning #AirPollution #NASAStudy #DelhiAirQuality #CropFires