What's behind extreme air pollution in India

A toxic brew lingers in the skies over India, created by everything from agricultural burning to industrial pollution. Cars are also a major contributor, with roughly 1400 vehicles added to the roads daily. Special correspondent Fred de Sam Lazaro examined this problem roughly two years ago and returns with this update on the cultural and economic challenges of making Indian air safer to breathe. Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter:   / newshour   Instagram:   / newshour   Snapchat: @pbsnews Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe