Level 3 - Source on Water Resources

• 1. Introduction: pressures on water resources
• 2. Where and in what forms is water available on Earth?
  • 2.1 How does water move from the atmosphere to the ground and back?
  • 2.2 How much freshwater is found at the Earth’s surface?
  • 2.3 How much freshwater can be found underground?
• 3. How much freshwater is available in different countries?
• 4. How can human actions seriously affect water resources?
  • 4.1 How are aquatic ecosystems threatened by sediment in water?
  • 4.2 How can different kinds of pollution affect water resources?
  • 4.3 What are the consequences of excessive water withdrawal?
  • 4.4 How is climate change affecting water resources?
• 5. How can the growing demand for water be met?
  • 5.1 Intercepting, diverting, storing and transferring water
  • 5.2 Water re-use
  • 5.3 Desalination
• 6. How could water resources be developed sustainably?
  • 6.1 What are the obstacles to sustainable water management?
  • 6.2 How could water be used more efficiently and sustainably?
• 7. Conclusions on water resources