1. 1. What is the meaning of a circulating resource?
What percentage of water is fresh?
Where is most of our freshwater? Is it easily accessible?
What is fossil water?
How does water circulate (use figure 1 to help you describe the process)?

2. 2. How Much RFWR is Available?
How is RFWR calculated?
What is green water? What is blue water?
How are runoff and river discharge related to the maximum RFWR?
Can humans use all of the RFWR? Why or why not?

3. 3. How are the World Water Resources Assessed?
How is the water scarcity index calculated?
What does W stand for?
What does S stand for?
What does Q stand for?
What are your group’s opinions about the virtual water trade?

4. 4. How Will Water Use Change in the Future?
What accounts for the most water consumption globally?
How will recycling technology affect our predictions of water supply and demand?
What concerns do developing countries have in the future?

5. 5. What Effects Will Climate Change Have on RFWR?
How will sea level rise affect groundwater?
How will will evapotranspiration, precipitation, transpiration, and river discharge likely be affected?

6. 6. How Can Hydrological Science Help Solve World Water Issues?
What type of data is missing from global water use?
How does hydrology play a key role in policy?