Discuss how the future of water availability depends on how nations can resolve water ownership, improve conservation, and develop new water saving techniques. Elicit why water which is consumed by multiple nations/states cannot be unilaterally diverted or shut down. Determine who must set priorities for distribution, how much to each nation for cities, farming, and industry. Discuss the economic idea introduced of having water be openly competed for in the free market, with market forces determining the price. Discuss why it is difficult to have a free market system for water use, but may be necessary. Introduce a tiered water system with rates changing with consumption. Introduce technological improvements to allow for more conservation. Analyze how industry can utilize more efficient manufacturing equipment which consumes less water. Discuss the difference in water use between developed countries and developing countries, as well as more affluent area compared to less affluent areas within the same country. Elicit reasons why the consumption is much greater in affluent areas.

Who owns water? Discuss how the right to use water in not the same as ownership. Analyze situations where water from a river or lake is used by multiple states or countries. Does one state have the right or power to deflect or shut off the supply? What steps must be taken by local or federal governments to insure a free flow. Discuss the economic possibility of water as a free market commodity, with individuals and corporations buying and selling at a market price. Distribution to be set by quota. Elicit how this could lead to more water conservation.

Unit 3 test, 3 modules, multiple choice questions

Unit 3 test. 3 modules

Discuss industrial water use, analyze use for electrical generation, cooling, and refining. Examine the 2 different methods used for generating electric and their water use.
Discuss residence use in developed and developing countries. Elicit reasons for the large differences in water use. Examine outdoor and indoor water use and why even within the same country there will be differences in use based on affluence. Discuss water quality and disease spread differences between developed and developing countries, as well as deaths caused by unsanitary drinking water.

Discuss residence use of water, developed v developing counties.
Examine factors which influence the amount of water used in both types of countries. Examine the indoor and outdoor use, and compare each to the type of nation, Examine the reason for the large differences in water borne diseases and death between each type.

Define what is meant by a water footprint. Show that the footprint will reflect a countries use of water for agriculture, industry, and/or residence. Solve a footprint equation. Discuss how to save water used in agriculture. Show photos of furrow, flood, spray, and drip irrigation. Discuss the efficiency of each one. Introduce hydroponic agriculture with water use at 95% less than traditional methods. Discuss industrial use in generating electricity, cooling nuclear power plants and refining mineral ores. Describe the difference between consumed and unconsumed water for these uses.

Discuss the industrial use of water. List the 3 main categories of industrial use being for electrical generation, cooling, and refining metals and paper production.
Discuss as water is used in electrical generation, some is listed as consumed watetr some as non consumed. Water used in hydroelectric generation is not consumed, while water used in fossil fuel generators is consumed, through evaporation and steam production. Discuss household water use, view and analyze table which indicates usage by country.

Define and discuss the per capita water footprint. Indicate the water uses this reflects and the % of each. Calculate the water footprint of the US and Canada from data. List and discuss methods to conserve water used in agriculture. Examine the 4 major irrigation techniques, view photos of each, examine the % efficiency of each. Discus reasons for the loss of water in each case. Introduce new techniques like hydroponic agriculture which will utilize 95% less water than traditional

From photos define and describe the 4 major irrigations practices. Discuss how and why they are used and the % efficiency of each. Indicate newer methods which include hydroponic agriculture. Discuss major advantages.