Fighting haze and smog from transport and industry may give us some breathing space (literally and metaphorically), by holding back Global Warming for a while, allowing us the time to get some effective legislation on turning back rising Carbon Dioxide emissions.
https://switchboard.nrdc.org/blogs/dbailey/carbon_crossroads_california_c.html
https://www.time.com/time/health/article/0,8599,1938379,00.html
https://blogs.nasa.gov/cm/blog/whatonearth/posts/post_1270497028672.html
https://www.physorg.com/news170006509.html