No because it has more cancer-causing agents in it than cigarettes.
(fact)
By the way, Otis, it still pollutes the environment and it also murders your lungs, almost as bad as cigarettes.
Marijuana has no filters. It produces smoke. It's not good no matter how you try to put it--even if people use it as "right" as possible, they're still loving stuff up.
Actually that's not a fact. Marijuana is no where NEAR as dangerous as cigarettes, as I said before in this thread, and there's actually scientific backing that it is nearly harmless.
Cigarettes emit Cyanide and Strychnine.
Marijuana emits THC
You can't say a light psychoactive is more dangerous than two highly effective poisons (and those are just my two favorite out of the roostertail that is the cig).
Also, just to challenge your argument: Why would medical professionals and scientists support medical marijuana for CANCER PATIENTS if it causes cancer?