EUTROPHICATION
Urban Water
GLACIERS
WATER, EROSION AND SEDIMENTATI
Water and Tourism
WATER AND INDUSTRY
WATER POLLUTION
WETLANDS
Climate Change
WATER AND HUMAN SETTLEMENTS
HYDROLOGICAL CYCLE

The links on the left side of this page contains interesting "World Water Facts".
Source: UNESCO WATER PORTAL WEEKLY NEWSLETTER": http://www.unesco.org/water/news/newsletter/index.shtml