1. BUZZKILL

    Pot-Related Traffic Deaths on the Rise

    (FILE) Picture taken in Montevideo on May 8, 2013 of a young man smoking a marijuana joint during a demonstration demanding a new law on cannabis. Despite the bill to legalize the cultivation and production of marijuana has yet to be passed by the Senate, the Uruguayan government is already preparing its regulations which include a sale price of one gram per dollar.   AFP PHOTO / Pablo PORCIUNCULA        (Photo credit should read PABLO PORCIUNCULA/AFP/Getty Images)

    AFP/Getty

    A new study from Columbia University found that marijuana contributed to 12 percent of traffic fatalities in 2010, triple the percentage from a decade earlier. That means pot is a factor in almost one in eight deaths on the road. Research by the National Highway Traffic Safety Administration found 4 percent of drivers are high during the day and more than 6 percent are high at night. Potentially exacerbating the problem is the fact that younger drivers are more likely to be high: One in eight high-school seniors say they drive after smoking marijuana.

    Read it at USA Today