2016 is going to be a big year for marijuana (mj) in the US. Four states currently allow recreational marijuana use, Colorado, Washington, Alaska and Oregon. And yesterday, California's Secretary of State's Office greenlit a recreational marijuana initiative. So come November, the state's citizens will vote whether to legalize adults 21 and older to possess, transport and use up to an ounce of weed, and the ability to grow up to six plants, per the LA Times.