[hkolek]

> but most of the carcinogens should be in both

Hm, I don't think so. While it's true that inhaling burned plant material is never a good thing, there is no evidence so far that smoking cannabis causes cancer. Search for Dr. Donald Tashkin who has done extensive studies on this subject. Afaik tobacco smoke is also radioactive due to phosphate fertilizer [1][2] so I assume this is also a major factor leading to its carcinogenic properties.

[1] http://www.epa.gov/radiation/sources/tobacco.html

[2] http://www.nuc.berkeley.edu/forum/218/radioactive-tobacco.20...

[cardiffspaceman]

Here comes the radioactive, GMO cannibis! With paraquat!