Climate change and water security

The Fifth Assessment Synthesis Report of the Intergovernmental Panel on Climate Change (IPCC) clearly stated that climate change over the twenty-first century is projected to reduce renewable surface water and groundwater resources significantly in most dry subtropical regions, intensifying competition for water among sectors. 

Through the Intergovernmental Hydrological Programme (IHP) and the World Water Assessment Programme (WWAP), UNESCO provides a platform for scientific knowledge in order to contribute to the assessment and monitoring of changes in snow, glaciers and water resources as a result of climate change and climate variability.

The Groundwater Youth Network

The Groundwater Youth Network (GWYN) is a youth led network aiming to provide a coordination mechanism between pre-existing youth organizations focused on water, and more specifically groundwater. 

Reports and publications

Water and Climate Change
UNESCO
2020

United Nations World Water Development Report 2020 (full report)

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Executive summary: Water and Climate Change
2020

Summary of the United Nations World Water Development Report 2020

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Climate Risk Informed Decision Analysis (CRIDA): collaborative water resources planning for an uncertain future
UNESCO
ICIWaRM
2018
UNESCO
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The Global Map of Groundwater Vulnerability to Floods and Droughts
2015
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The Andean glacier and water atlas: the impact of glacier retreat on water resources
UNESCO
GRID-Arendal
2018
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Droughts in the Anthropocene
UNESCO
GRID-Arendal
2019
UNESCO
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Proceedings of the 2nd International Conference on Water, Megacities & Global Change
UNESCO
2022
UNESCO
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Water quality from Space through satellite Earth Observation
UNESCO
2022
UNESCO
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Quantity and quality of water resources

Fresh water is the most important resource for humanity.

In many regions, changing precipitation or melting perennial snow and ice are altering hydrological systems, affecting the quantity and quality of water resources. 

Child drinking water from a tap