Johnna S. Keller is a registered architect, and specializes in sustainable design and consulting. M. Keller has led the green building efforts for a number of organizations and projects forging new paths in sustainability throughout the southeastern U.S., with projects ranging from schools and universities to major research labs and most recently, achieved Living Building Challenge Petal Certification for the Light Lab at Mohawk Industries. She currently works for M+A Architects in Columbus, Ohio, and is working on what will be the first net zero energy building for the City of Columbus. M. Keller is a Co-Facilitator of the Living Building Challenge Collaborative in Columbus.