Rainwater collection and managing scarce water resources in the urban landscape is a challenging and urgent task.
Disruptions to the hydrological cycle as a result of urbanization and reduced forest cover are having an adverse impact on the environment. Heavier storms and an increase in storm water runoff over impervious surfaces cause floods and erosion.
Pollution contributes to the deterioration of water resources. Together storm water runoff and pollution affect both the quantity and quality of water available to the population.
Storm water management seeks to mitigate the quantity of storm water runoff, improve its quality, and channel wastewater for reuse. In the process, the landscape may be beautified through greening.