Dependence on sand

Sand is essential for activities as diverse as building (concrete) and computing (as silica).

1. Dependence on external resources

1. Vulnerability of high technology systems
2. Silicates as pollutants
3. Shortage of sand and gravel
4. Illegal sand mining
5. Destructive sand mining
6. Shortage of construction materials

1. Lack of training in construction techniques in mountainous conditions
2. Glass and glass products industries instability
3. Coastal erosion

1. Glass and glass products manufacture underdevelopment