Today, the Colorado Department of Public Health and Environment released preliminary results from a survey that show that 37% of Colorado high school students have tried marijuana, and one in five has used it in the past month. These results are from the Healthy Kids Colorado Survey, a survey of middle and high school students that is administered every two years. During this summer and fall, the results from the 2013 survey are being released. Over the next few months, results will be available at http://www.chd.dphe.state.co.us/topics.aspx?q=Adolescent_Health_Data, where you can also find and compare results with previous surveys back to 1999. You can also find the official reports of past surveys in our library — visit our web catalog and search keyword Healthy Kids Colorado Survey. Also, you can find information on the effects of marijuana on youth at the State of Colorado’s official marijuana information website.