is there more tar in cigarettes or weed Smoking pot vs. tobacco: What science says about lighting up Does Marijuana Deposit More Tar
Description
More than 200 smokers were asked to smell a number of odors and rate them as pleasant, tobacco smell or neutral/blank odor and then light a cigarette without smoking it

Chung, G

In contrast with previous research that found no difference, they found that smokers were rated significantly lower than nonsmokers in these areasleading them to suggest that people are increasingly viewing smokers in a negative light

Slater, SJ, Chaloupka FJ, Wakefield M, Johnston LD, O'Malley PM

If you have a sensitive stomach, smoking cannabis without eating first could cause discomfort, such as nausea or dizziness

Much of the content of cigar ash (as described above) is technically good for your plants
