Bill is a principal in Integrative Design, Inc. and Regenesis, and an internationally thought leader in sustainability and regenerative planning, design and implementation. His work centers on creating and implementing a whole and living-systems design process. Bill is an author of many technical articles and co-author of the seminal work, “Integrative Design Guide to Green Building.” In addition to being a co-founder of LEED, he has consulted on over 200 green design commissions, the majority which are LEED Gold and Platinum and Living Building Challenge projects. He is a keynote speaker at major events in the US and abroad.