DuHun Photography Architect, designer and author William McDonough is well-known to many in sustainability — as a pioneer in green building; as the erstwhile "green dean" of architecture; as co-author of the seminal 2002 book "Cradle to Cradle"; as a designer of breakthrough buildings and materials; as a deep thinker about how design relates to a healthy and abundant future; and as an enthusiastic framer of the concepts and language that have become part of the sustainability lexicon. On the occasion of his 70th birthday this month, I caught up with McDonough to discuss his journey and som...