Colorado cannabis companies have sponsored more highways for clean up than any other industry.  In fact, 51 cannabis companies sponsor 66 percent of roads, or 198 miles, covered by the state’s Clean Colorado program. 

“It presents marijuana stores in a positive light,” Harsha Gangadharbatla, an advertising professor, told The Denver Post. “The money made from marijuana is put to something good, like keeping up roads and transportation that everyone uses.”