Imsuspect marijuana smoking is just as harmful. The bulk of the trouble from tobacco is from the smoke. And if you look at the health effects of air pollution,

Imsuspect marijuana smoking is just as harmful. The bulk of the trouble from tobacco is from the smoke. And if you look at the health effects of air pollution, they’re very similar to smoking: respiratory infections, heart disease, COPD, stroke and lung cancer Inhaling any burning thing is quite bad for the human organism. https://en.m.wikipedia.org/wiki/Air_pollution#Health_effects https://en.m.wikipedia.org/wiki/Air_pollution#Health_effects