Whatever the event is that you are planning, you have opportunities to make a positive difference for the environment. Event planners are the central figures in any event, affecting the choices and experiences of a constellation of suppliers, facilities, caterers, sponsors and attendees. This Colorado Sustainable Events Guide was designed for hosts and planners to help lessen negative impacts on the environment and make a positive contribution to the community and the planet. The content of this guide is drawn from best practices researched and the experience gained by the local Denver Greening Initiative of the 2008 Democratic National Convention. It features ideas and case studies to get any event planner, in any city started in terms of providing green leadership, selecting green event locations, reducing waste and recovering resources, minimizing energy use and contributions to greenhouse gases, moving away from single-use plastic water bottles, and educating participants. This guide also includes helpful resources and case studies unique to Colorado from small, medium, and large events, both indoor and outdoor. sustainability-guide