The Australian government will now accept licence applications for groups wanting to grow cannabis for scientific and medical purposes. But there's still a lot we don't know about this complex plant.
Nine states are deciding whether to legalize marijuana. Yet the drug's prohibition at the federal level has created an unstable financial environment for producers and retailers.
Not only are our drug policies not working, we're falling behind the rest of the world and what evidence says is best to ensure we have fewer deaths from illicit drugs.