The percentage of people in the United States who see regular marijuana use as harmful has fallen since the beginning of the 21st century, a new study finds. That could translate into more pot users in the future, experts say.
In 2002, about half of Americans (51 percent) thought there was a great risk associated with smoking pot once or twice a week. By 2012, that figure had dropped significantly, to 40 percent, according to data from the National Survey on Drug Use and Health.
Despite the big shift in public opinion, rates of cannabis use did not change that dramatically over the same 10-year period.
