Do keep in mind that smoking is probably the most harmful of the many common ways marijuana is consumed. Vaporizing or eating cannabis renders zero carcinogenic chemicals from smoke.
For sure. Also smoking is the most obnoxious and invasive to the people around you.
Did you read the article?
Yup. It doesn't address the question of how many chemicals are in cannabis smoke, and how many of those are cancer-causing. That's a distinct question from "does smoking cannabis cause cancer." Aspartame is a carcinogen but Diet Coke does not cause cancer.