Nature-based Solutions apply ecological design to address societal challenges. Climate change has aggravated extreme hazard events such as floods, droughts, extreme heat, and fires that threaten livelihood of communities, especially for vulnerable populations, in addition to the sustainability of urban water systems. Conventional urbanization patterns and urban water infrastructure systems are designed based on past climate trends and unable to meet current and future needs under climate change uncertainty. Green infrastructure design as nature-based solutions applied to stormwater management and water conservation strategies aim to restore hydrological functions and provide multiple ecosystem services benefits and building community resilience. To further address climate justice, it is critical to meaningfully engage communities in co-designing nature-based solutions and evaluating landscape performance outcomes. Dr. Cheng brings case studies in convergence of natural and social sciences and integrating research, teaching, and practices for building sustainable, resilient, and just urban water systems with diverse and vulnerable communities in Honolulu, Hawai’i, and Phoenix metro area in Arizona.