Total renewable water resources:
72 cu km (2005)
Freshwater withdrawal (domestic/industrial/agricultural):
total: 8.7 cu km/yr (16%/3%/81%)
per capita: 782 cu m/yr (1997)
Natural hazards:
severe earthquakes
volcanism: Santorini (elev. 367 m, 1,204 ft) has been deemed a "Decade Volcano" by the International Association of Volcanology and Chemistry of the Earth's Interior, worthy of study due to its explosive history and close proximity to human populations; although there have been very few eruptions in recent centuries, Methana and Nisyros in the Aegean are classified as historically active
Environment - current issues:
air pollution; water pollution