There's been several posts on this topic - and similar, and many with reference inside. "Consumption" != smoking. Smoking is a form of consumption. There are others. I didn't see any reference to smoking. And done "right" it wouldn't harm a "station" either. Sure, it's not something that should be happening around others who would choose for otherwise, but it's not within itself generating any problem that isn't impossible to sufficiently overcome. Attacked right. In the case of cannabis, the CO2 you generate in smoking it can actually be used as fuel in the photosynthasis component of the grow cycle of the next batch. And other crops. As you don't smoke(shouldn't) the leaves, the stems, the roots - then you're not putting as much in by smoking it as growing it takes out(it composting after you've done cold water extraction on the leaves/stem, then put the waste through a cycle to render graphene does produce equal, it all has to balance in the end - but you can recycle that, too).