| Abstract |
Urbanization poses increased water demand due to rapid population growth, and also increased impervious lands exaggerate surface runoff and lessen groundwater resources. On the other hand, climate change significantly influences the quantity and quality of rainfall. Worldwide urban water management faces three-dimensional challenges, i.e., potable water shortage, urban floods, or waterlogging and depleting groundwater. This chapter provides an overview of urban hydrology, challenges on urban water management, the glorious history of rainwater harvesting systems, briefly implementation and direction, and their potentiality towards a water smart city. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG. |