Charley Stevenson is a sustainability consultant and green building entrepreneur focused on helping others understand and implement the Living Building Challenge. Since 2010, Stevenson’s company, Integrated Eco Strategy (IES), has managed the green aspects of projects from 1,000 to 500,000 square feet, include the Williams College Environmental Center, Hampshire College’s R.W. Kern Center, Hitchcock Center for the Environment, and Yale Divinity School campus. To facilitate materials compliance, IES created Red2Green, a comprehensive platform for building materials evaluation, selection and management, now used nationwide. IES, in partnership with ILFI, offers R2G as a neutral platform and database available by subscription to all project teams.