What most beggars belief is that Roscoe somehow incorporates into his belief system the idea that tobacco is evil by saying it is brown - when it is, of course, green. God gave us tobacco too. Just because marijuana retains more of its color when dried doesn't mean God intends it to be used.
By your reasoning, we can say that it is perfectly good to consume coca leaves even though they make you high (like MJ) because they are chewed whilst still green. In fact, to make my case as strong as yours - show me a pre-conciliar pope who condemned coca leaves and their consumption.
Roscoe, it is apparent to all but you that you are simply trying to justify abusing a substance so you feel better about it. No scholastic theologian would say MJ is okay to smoke - and the fact that no pope has spoken on the issue is irrelevant - they haven't spoken on the use of meth or laudanum or many other stimulants and drugs except by their constant condemnation of the use of any substance to a point that we lose our ability to correctly reason. That condemnation includes MJ by the fact that MJ does just that.