David is one of the founders and current Director of the California Straw Building Association (CASBA). He is past-President of Architects, Designers, and Planners for Social Responsibility (ADSPR) and served fror twelve years as a board member of the Solar Living Institute (SLI). He has taught and lectured on the subject of sustainable design for over twenty years. David is a native of Wisconsin and earned his B.Arch from the University of Minnesota. A licensed architect since 1991, he spent four years as project architect and planner with Van der Ryn Architects – most notably on the Real Goods Solar Living Center – and apprenticed with Obie Bowman at The Sea Ranch.