Last December, the ASCE International Conference on Sustainable Infrastructure brought sustainabilty thought leaders from around the world together. And now, ASCE has published a book collecting selected papers from the conference.In episode 112 of the ASCE Plot Points podcast, the book's co-editor Michael Bloom, P.E., ENV SP, M.ASCE, discusses the special collection and what he calls a "tipping point" for the state of sustainable infrastructure.