First-time pot users on the rise in Canada since legalization

The number of people in Canada using pot for the first time has nearly doubled since the drug was legalized in October, a government study says.The National Cannabis Survey, which covered the first quarter of this year and was released Thursday, found that 18 percent of Canadians aged 15 or older say they have tried marijuana, compared to 14 percent in the same period of last year, Statistics Canada reported."Some of these new cannabis consumers were first-time users, while others were former ca