Recreational marijuana, which was legalized in Washington, D.C. and decriminalized in February 2015 in Alaska has been deemed to be less dangerous as compared to both tobacco and alcohol, according to several scientists.
Scientists have argued over the years about the safety of cannabis in comparison to alcohol, however in a report published
in January 2015 in Scientific Reports, researchers measured the
potential harm caused by each of these drugs in a more quantitative
manner, by comparing a lethal dose with how much of the substance is
typically consumed socially.