Peer-reviewed journal Clinical Pediatrics, found that between 2006 and 2013, the marijuana exposure rate rose 147.5 percent among children age 5 and under. In that same period, the rate rose nearly 610 percent in states that sanctioned medical marijuana before 2000, the year Colorado followed suit.

Employers, law enforcement officials, educators and addiction treatment providers say Colorado has cooked up a poorly regulated THC-food fiasco that crisscrosses the country with the ease of exporting gummy bears in glove compartments, pockets and handbags. For taxpayers, the growing edibles market means an array of social costs — including hospitalizations, traffic accidents, school dropouts and lost work productivity — that state and federal officials haven’t fully investigated, estimated and made public.