One of the major issues that was put forward late this summer was Initiative 75 and 78 which were both issues involving fracking; the increasingly sensitive and rising topic, especially here in Colorado, that involves drilling for natural gas. Neither of these initiatives qualified for this coming election, but nonetheless fracking and other natural resource issues will be extremely important issues over the next several years and in future elections.
https://collegian.com/2016/09/stettner-fracking-must-remain-an-important-issue-in-colorado/