The visionary founder of the Living Building Challenge illuminates the game-changing impacts of the world’s most advanced and provocative green building certification program. He chronicles its core principles, its global influence on designers, builders, communities and educational systems, and its manifest progress transforming the interface between human habitats and the natural world into a virtuous cycle.

This speech took place at the 2013 Bioneers Annual Conference and is part of the Ecological Design Collection, Vol. 2.