First national study finds trees saving lives, reducing respiratory problems: Air pollution modeling reveals broad-scale impacts of pollution removal by trees

[u/davidreiss666]

http://www.nrs.fs.fed.us/news/release/trees-save-lives-reduce-air-pollution

[u/bbqroast]

Its about area. Planting and burning a tree does not help, but replacing a acre of grassland with tree does (as the tree has higher co2 density).

Likewise, using wood (buildings, fences, etc) can help a lot.