What is a water footprint?

A water footprint is defined as the total volume of freshwater used to produce goods and services, which includes not just direct water consumption but also the indirect water that goes into the production processes of various products and services. This encompasses various sectors, such as agriculture, industry, and domestic use, providing a comprehensive view of the water resources required throughout the entire supply chain.

This concept is critical for understanding the overall impact of consumption patterns on freshwater resources. By considering the full water footprint, stakeholders can make informed decisions about water use and sustainability practices, evaluating how different goods and services affect overall water availability and management.

The other choices refer to specific aspects of water use. While the total volume of freshwater used in households highlights domestic consumption, it does not capture the entire picture as it excludes agricultural and industrial contributions. The daily per-person water consumption focuses narrowly on individual habits and misses broader impacts. Meanwhile, the total water stored in underground aquifers pertains to water storage rather than consumption, which is not aligned with the definition of a water footprint. Thus, the most encompassing and accurate definition is the total volume of freshwater used to produce goods and services.