Bill Wallace, ENV SP, F.ASCE, has more than 40 years of professional experience, including 30 years in environmental engineering and management. He is the author of Becoming Part of the Solution: The Engineer's Guide to Sustainable Development, published by the American Council of Engineering Companies. He has served as a liaison delegate to the World Business Council for Sustainable Development, president and member of the governing board of Engineers Without Borders – USA, and chair of ASCE's International Conference on Sustainable Infrastructure in 2014. He is the inventor and lead designer of the Envision sustainable infrastructure rating system, recipient of the Engineering News-Record's 2013 Award of Excellence and the ASCE President's Medal in 2014. Currently, he teaches a course with the University of Florida titled, "Principles of Sustainable Engineering Design."