What types of problems may result from human activities that alter ground-water systems?
For what purposes did the Romans engineer the transportion of water?
What type of Roman technology were employed in transporting water?
What were special features of Gafsa?
What evidence do we have for wetter environments in the ancient Sahara?
What sorts of water projects did Septimus Severus undertake in Libya?
What are some unusual features of modern water management in Arizona, London, and Kazakhstan?
What are some unusual aspects of ancient Roman water distribution systems?