TY - JOUR TI - Framework for Urban Metabolism and Life Cycle Assessment of Hardscape PY - 2018 AU - Ali A. Butt AU - John T. Harvey AU - Alissa Kendall AU - Hui Li AU - Yuxin Zhu T2 - Factor X: Challenges, Implementation Strategies and Examples for a Sustainable Use of Natural Resources LK - https://escholarship.org/uc/item/77g742tq ER -