How does irrigation of crops impact global water use?

Irrigation of crops significantly increases global water use because it requires substantial amounts of water to ensure that crops receive adequate moisture for growth. Agricultural activities are one of the largest consumers of freshwater resources worldwide, representing a major portion of total global water withdrawals.

When water is applied to crops through irrigation systems, it is drawn from various sources, including rivers, lakes, and groundwater. This increased demand for water can lead to over-extraction of these resources, impacting ecosystems and potentially leading to shortages in areas where water is already scarce. This is especially true in regions that rely heavily on irrigation to support agricultural production. Consequently, the widespread adoption of irrigation practices around the world is a key driver behind escalating global water use, contributing to concerns about sustainability and resource management.

Other factors, such as the efficiency of different irrigation techniques, may influence the extent to which water is consumed, but the overall trend remains one of increased water usage due to agriculture's reliance on irrigation.