Unless you have been living in an underground bunker for the last five years, you must have caught a whiff of the legal marijuana industry booming in the 29 US states where consumption has been decriminalized. Marijuana retail sales across the US accounted to $6.5 billion in 2016, and are predicted to grow to $30 billion by 2021. As more and more states have loosened legislation — or gone full whack and decriminalized for personal use like in Colorado, Washington, and Vermont — the industry surrounding the sale of the plant has blossomed from just growers, cutters, and dispensaries, to a…

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