For some reason it won't let me upvote this post. You can see my related submissions regarding delhi's air quality at the links below. https://news.ycombinator

For some reason it won't let me upvote this post. You can see my related submissions regarding delhi's air quality at the links below. https://news.ycombinator.com/item?id=6926518 https://news.ycombinator.com/item?id=6926518 https://news.ycombinator.com/item?id=6933336 https://news.ycombinator.com/item?id=6933336