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World Water Assessment Programme

The world's gateway to understand the state, use and management of the world’s freshwater resources and design better water policies


In Focus



Learn more about the Office and UNESCO's work

Overview of UNESCO WWAP

UNESCO established the World Water Assessment Programme (WWAP) in 2000 in response to a call from the UN Commission on Sustainable Development (CSD) to produce a UN system-wide periodic global overview of the status (quantity and quality), use and management of freshwater resources.

Its overall objective is “to meet the growing requirements of UN Member States and the international community for a wider range of policy-relevant, timely and reliable information in various fields of water resources developments and management, in particular through the production of the United Nations World Water Development Report (WWDR)”. Consequently, WWAP, through the WWDRs and complementary activities, aims to equip water managers and policy- and decision-makers with knowledge, tools and skills necessary to formulate and implement sustainable water policies.

About the World Water Development Report

The World Water Development Report (WWDR)

Valuing Water

Water and Climate Change

Leaving No One Behind

The Value of Water and Sanitation Services

The Value of Water for Societies

The Value of Water for the Economy

The value of water and gender equality

Our sessions at World Water Week 2021

Valuing Water, the World Water Development Report

Culture and Art in Valuing Water

Accelerating Gender Equality in the water domain