Climate & Environment

Water Security

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Definition

Water security, as defined by UN-Water, is the capacity to safeguard sustainable access to adequate quantities of water of acceptable quality for sustaining livelihoods, human well-being and socio-economic development, for ensuring protection against water-borne pollution and water-related disasters, and for preserving ecosystems in a climate of peace and political stability.

References

sdgs.un.orgBulk import source

This reference provides supporting context for how “Water Security” is defined and used.

Overview

How it is used

The concept frames national water strategies and SDG 6 delivery; development banks assess water security in country diagnostics; security studies examine water as a driver of migration and conflict; corporates assess operational exposure in water-insecure regions.

Why it matters

Water insecurity affects billions of people and is projected to intensify with climate change and demand growth, making it a central organising concept for water policy and investment.

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Meaning status
Established
Last verification recorded
22 Aug 2026
Last updated
22 Aug 2026
What the classifications mean

Meaning status: Established

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