The world has a large tropical belt, creating massive jungles and rain forests. Tropical plants provide a variety of life saving drugs that cannot be easily synthesized in a laboratory. Major drug companies set up shop on Greenleaf, providing the bulk of work for the locals.
Some of Greenleaf’s residents, seeing the enormous profit to be made, began making “clippings” of pharmaceutical plants and grow them privately to sell on the black market. The problem became so great that the drug companies began engineering new plant strains with traceable genetic tags, so that confiscated merchandise could be traced back to the origin point. The technique has not yet led to any major arrests, mostly because there are dozens of small cartels, and they are difficult to track down in the jungle.