Colorado pot report: More adults using drug, but not kids

DENVER (AP) — Colorado kids are not smoking more pot since the drug became legal — but their older siblings and parents certainly are, according to a long-awaited report giving the most comprehensive data yet on the effects of the state's 2012 recreational marijuana law.

Anonymous surveys given to about 40,000 Colorado students before and after legalization showed "no significant change" in marijuana use by children under 18 in the preceding 30 days.

The report comes three years after lawmakers ordered the state Department of Public Safety to start tracking law enforcement activity related to pot.

Traffic fatalities in which a driver tested positive for marijuana's psychoactive chemical, THC, increased 44 percent in the first two years of legalization.

— The report said there was "no discernible trend" in illegal pot cultivation on public land, which includes most of Colorado's ski resorts.