Virtual Water

Virtual Water

Paper instructions:
Question 1 (10 marks)

Describe why irrigated land is important (1 mark). Discuss the advantages of irrigation (2 marks). Discuss the disadvantages of irrigation (4 marks). List one

location in the world with irrigation issues (1 mark). Provide three examples of how technology, best practices, or scientific research that can address this problem

(2 marks). Don’t forget to properly cite at least 2 scientific references for this question. Scientific references can be peer-reviewed journals, scientific books, or

government websites (e.g. Environment Canada, US Environmental Protection Agency, etc.)

Question 2 (10 marks)

Briefly explain (maximum 2 sentences) whether you agree or disagree with the statement and why (2 marks). List 3 issues that contribute to water stress (or

alternatively, 3 innovations that can tackles water stress) (6 marks). Pick a megacity, mention which city you picked, and describe the water challenges that your

chosen city faces (4 marks).

Question 3 (5 marks)

a) While going through the exercise, track your water usage by submitting a table (using proper units) in your assignment. Identify the highest and lowest water

usage value in bathroom, kitchen, and at the table (1 mark). Using the examples presented on the website, suggest ways of reducing your person water footprint (2

marks).
b) Embedded water usage also means “virtual water”. Be sure to note your overall household total and the Canadian average which is just to the left of your

household total (1.5 marks). Discuss whether your total is higher or lower than the Canadian average (0.5 mark)

Objectives:
1. Discuss pros and cons of irrigation and suggest future approaches and strategies to
manage this sector of water use.
2. Discuss how “megacities’ manage their water resources.
3.Leam how to calculate and control your water footprint.
Please answer the following three questions:
1*. Irrigation is on an ecologist’s hit list. Why? Discuss pros and cons for irrigation of an
agricultural land . In your opinion what can be done in the future in this sector of water
resources management (give at least 3 suggestions). At least one real world example
irrigated land) should be part of your discussion (10 marks).
2*.Water stress is most vivid in” megacities” , do you agree or disagree with this
statement. Why do you say this? Explain the ways in which they contribute or not to the
stress. Your explanation should be coupled with at least one real world example such
as Mexico City, Mumbai, Tokyo, Lagos, etc. (10 marks)
3*. Water footprint calculations.
3.1) Go to the web site www.waterfootprintkemlra.com and start the calculator.
Calculate your personal water footprint and answer the following questions:

a) For each question Istatement (1-17) write the quantity of water added (+) L/day or
reduced (-) L/day. What are your highest and lowest values for water use in the
bathroom, kitchen and at the table. How would you reduce (increase?) your water
footprint? Suggest several the most effective examples. (3 marks)
b) What is your total, embedded and direct water footprint; briefly discuss these values
and compare the total value with Canada’s average value. (2 marks)

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