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IHP-IX 1.1. Strengthening Global Cooperation to Advance Hydrology Research

International scientific cooperation strengthened and fostered to address unsolved problems in hydrology, improving scientific understanding of hydrological cycles across river basins and aquifers. 1. Coordination of UNESCO scientific efforts on Unsolved Problems in Hydrology, including hydrogeology/geo-hydrology, in partnership with IAHS, IAH and other water related scientific associations, including organization of the capitalisation of knowledge, results and experience available in the UNESCO Water Family, incl. the Flagships, into published syntheses. 2. Establishment and maintenance of an exchange scheme among UNESCO water family and partners for research on Unsolved Problems and New, Emerging Topics in Hydrology. 3. Exploration of the emerging research challenges and periodic review of unresolved problems in hydrology, in cooperation with Hydrological Divisions of International Geophysical Organisations (e.g. AGU, EGU) in partnership with IAHS and IAH. 4. Establishment and implementation of UNESCO Biennial Award for Ph.D. studies and Biennial Conference series on Unsolved Problems and New, Emerging Topics in Hydrology, in partnership with IAHS, IAH, IAHR and other relevant organizations, such as WMO.
Contributing Action Number
CA4.9
Primary Entry Point
4: Accelerate progress and transformational change
Additional Entry Point(s)
1: Lead and inspire collective action
2: Engage better for countries
Output(s)
Output 1.2: Action is inspired by compelling and unified UN system communications and messaging on water
Output 2.1: Expertise and resources are fully leveraged by the UN system to support countries, with emphasis on the water and sanitation needs of developing countries
Output 2.2: Diverse stakeholders and partnerships are mobilized by the UN system to support countries’ progress on water and sanitation
Output 3.3: Mainstreaming of water and sanitation-related issues into Member States-led intergovernmental processes is supported by the UN system
Output 4.2: High-quality, disaggregated water and sanitation data and information are available and shared transparently through strengthened national and sub-national monitoring systems and regional and global platforms with support from the UN system
Output 4.3: Institutional and human resources capacity development support that responds to national needs and priorities is provided by the UN system, contributing to a skilled water and sanitation workforce
Output 4.4: Enabling environments for water and sanitation innovation are supported by the UN system, including policies, partnerships, and transfer of technology to remove barriers, with emphasis on technology transfer needs of developing countries
SDG 6 Target(s)
Cross-cutting work on SDG 6
SDG target 6.3: Improve water quality, wastewater and safe reuse
SDG target 6.4: Increase water-use efficiency and ensure freshwater supplies
SDG target 6.5: Implement integrated water resources management (IWRM)
SDG target 6.6: Protect and restore water-related ecosystems
SDG target 6.A: Expand international cooperation and capacity-building
SDG target 6.B: Support stakeholder participation
Type of Engagement
Normative support (e.g. development of normative guidance, guidelines and standards)
Data collection and analysis
Capacity development and technical assistance
Convening of stakeholders
Geographical Scope
Global level
Regional, transboundary and sub-regional (multi-country) level
Country-level (national, subnational and local)

United Nations System-wide Strategy for Water and Sanitation

The Contributing Actions are key initiatives supporting the United Nations System-wide Strategy for Water and Sanitation, aligning individual and joint efforts across UN entities and partnering organizations to advance global water and sanitation goals. These actions are integrated into the Collaborative Implementation Plan (CIP) Results Framework 2025-2028, which provides a structured approach to achieving system-wide impact through coordinated UN efforts.
The Priority Collaborative Actions outlined in the framework focus on enhancing water security, improving governance, strengthening climate resilience, and accelerating progress on sanitation and hygiene. By fostering system-wide collaboration among UN agencies, these actions help drive policy coherence, knowledge sharing, and innovative solutions to address the world’s most pressing water challenges.