While some of these concerns may be genuine, a recent survey from the Colorado Department of Public Health and Environment demonstrates — for the second year in a row — that youth in Colorado do not use cannabis any more than teens in other parts of the country. In fact, by at least one measure, they use less.

The Healthy Kids Colorado survey is a "voluntary survey that collects anonymous, self-reported health information from middle and high school students across Colorado," according to the initiative's website. Over 17,000 middle- and high-schoolers throughout the state were randomly selected to participate. The survey is conducted every other year, and the 2015 version, released this week, confirmed the 2013 findings that marijuana use among teens in Colorado had fallen flat.