It was just about five years ago that I sat down with my colleague Alanna Stang to begin work on a survey of ecoconscious residential design, ultimately published as The Green House: New Directions in Sustainable Architecture (Princeton Architectural Press, 2005). The book’s thesis was straightforward: The green-design and high-design wings of the architecture profession, which had looked at one another for so long across a chasm of mutual disdain, were beginning to find common ground.