This searchable site, from The United Nations Environment Programme, is a clearinghouse for information about freshwater around the globe. The site provides links to UN reports, background guides on key freshwater issues, and many other resources.
Subject: Geoscience:Hydrology Resource Type: Scientific Resources:Collection, Audio/Visual:Maps, Images/Illustrations, Datasets and Tools:Datasets Data Derived: Data Derived Data Source: Observational Data Earth System Topics: Hydrology:Ground Water, Human Dimensions:Environmental Quality, Resources, Hydrology:Surface Water Science Background Required: Broadly accessible Topics: Hydrosphere/Cryosphere
