The policy behind the pollution. Become a Video Lab member! http://bit.ly/video-lab Every November, Northern India experiences some of the most dangerous air pollution levels in the world. Typical pollution sources like car exhaust, construction dust, and industry emissions are partially responsible, but there is another factor that makes Delhi's air deadly. A policy was enacted in 2009 and it is wreaking havoc on the lungs of residents in India's capital city. To learn what it is and what's being done to stop it, make sure to watch the video above. To learn more, read on Vox.com: https://www.vox.com/science-and-health/2019/11/8/20948348/delhi-india-air-pollution-quality-cause Sources: https://airnow.gov/index.cfm?action=airnow.global_summary#India$New_Delhi https://www.airvisual.com/world-most-polluted-cities https://www.who.int/airpollution/data/cities/en/ Vox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out http://www.vox.com/. Watch our full video catalog: http://goo.gl/IZONyE Follow Vox on Facebook: http://goo.gl/U2g06o Or Twitter: http://goo.gl/XFrZ5H