Marijuana enjoys a legal high in 2014

Washington

IT'S been something of a breakthrough year for marijuana, the once shunned intoxicant that is steadily gaining ground as a legal high in parts of the world. In 2014, Uruguay may have been the only country to fully legalise pot, but a growing number of US states followed parts of Europe in moving in a similar direction.

And news that the family of the late reggae great Bob Marley has approved the marketing of "Marley Natural", an upmarket marijuana brand, reinforced t…