Friday Week Ten

...some questions...

1.What is the difference between consumptive use and non-consumptive use? Why is water consumption (almost always) different that food or energy consumption? Why does water have value? Can water be a liability (have a value that is less than zero)? How does water use change its value? Can you map the progression of the following categories of use in value-time space: domestic, recreational, agricultural, industrial? Will all industrial water uses have the same path? Will all agricultural uses? Is there a possibility for semi-consumptive water use?

2. What is an ecological footprint? What is a water footprint? Why is it called a water footprint if it is a volume instead of an area? Is the water used in themoelectric electricity generation considered in a water footprint calculation? What do the water footprint calculations of Hoekstra and Chapagain (2007) say about the per capita water consumption in the US vs. the rest of the world? What about China?

3. What do the high rates of per capita water use in ID, MT, and WY say about the people that live there? 

Slides shown today are on Sakai. Your assigned reading for Monday as well as your homework for next Wednesday and your "extra" credit opportunity will be up tomorrow (Saturday) morning.