Presenting target 6.4 on water use and scarcity
What and why?
Target 6.4 addresses water scarcity, aiming to ensure enough water for people and the economy, as well as for the environment, by increasing water-use efficiency across all sectors of society. Securing environmental water requirements, that is, leaving enough water in the environment at any given moment to sustain its natural processes, is essential for maintaining ecosystem health and resilience (closely related to target 6.6 and SDG 15).
Increasing water-use efficiency means generating more output per water input (for example, more crops per cubic metre of water), including by reducing water losses (for example, in municipal distribution networks). In this regard, some sectors are of special relevance due to their high water use, for example, agriculture, industry, energy and municipal water supply.
Progress towards target 6.4 at the global level will be monitored through two indicators: