Emerging Sustainable Technology, Design, Energy Efficiency, Renewable Energy and Appropriate Technology. John Barrie is a principal architect with John Barrie Associates Architects in Ann Arbor, MI. and also Executive Director of the Appropriate Technology Collaborative. In addition to practicing Architecture and Industrial Design, John Barrie has been an Adjunct Professor of Architecture at the University of Michigan and an Adjunct faculty member at Washtenaw Community College. John is known for his deep commitment to the principles of sustainable design incorporating concern for social justice, economic development and the creation of human centered structures. John has contributed to the design, specification and construction of environmental projects throughout North America. Recent projects include work with Warner Bros. Studios and the United States Air Force.