All this countries don't rule the world. You are THE ruler. You must be much much much more aware of what you do with each step (let's for a minute ignore that you don't really care).

>Really? How, exactly, is "the world" affected by the legality or not of marijuana in the US?

It's simple. CA accepts -> other states accept because they look after CA & NY & TX -> UK accepts because in such things they look after USA -> EU accepts because in such things they do what USA & UK do -> Russia accepts because in such things they do what EU do (yes, it is true).

5-10 years for each step.