$MJ It's an industry that's expected to explode in coming years. Last year, the marijuana industry saw $6.8 billion in sales nationwide for both recreational and medicinal marijuana and is projected to grow to $21.6 billion by 2021, according to Arcview Market Research, a California-based company that tracks the marijuana industry.


Gov. Snyder names former lobbyist, lawmaker Rick Johnson to chair medical marijuana board http://on.freep.com/2rpbeUT via @freep