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3.6 Water resources

3.6 Water resources. Glen Canyon: Paper 2 Tuesday, 17 th April, 45 minutes. To revise: EIAs HEP Techno and ecocentric values. World water hotspots. Write 5 sentences to summarise the problems people are facing in five parts of the world . 1 2 3 4 5

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3.6 Water resources

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  1. 3.6 Water resources

  2. Glen Canyon: Paper 2 Tuesday, 17th April, 45 minutes To revise: EIAs HEP Techno and ecocentric values

  3. World water hotspots Write 5 sentences to summarise the problems people are facing in five parts of the world. 1 2 3 4 5 Water shortage Part 1 Watch these clips and add Water shortage part 2 annotations to the next slide.

  4. World water hotspots – Part 1: Part 2: Spain

  5. The world’s water budget Insert a graph to show the percentages of fresh and saline water in the world Why is this a problem for the world’s people? Consider what we use water for as well as issues such as development, population growth and climate change.

  6. Fresh water in the world • Find a graph that shows where the world’s freshwater is. • List the freshwater sources in decreasing order of size with the % next to each one. • What problem can you see from your table?

  7. Water inequality Watch: A world without water Answer the questions on the next slide on the first 12 minutes of the film, then continue making your own notes.

  8. Where is the film set: Place: Country: Continent: How does the family get its water? How do you get your water? How many people in the world lack access to clean water? How many people are there in the world? 7 billion 70 billion What caused Vanessa’s brother to die? How can not having water lead to death? • 1 • 2 • 3 Why can’t the family get water on tap? Apart from the daily walk to get water and her brother dying from lack of clean water, how else does no access to water affect Vanessa? What proportion of the world’s population live in areas of water scarcity? Why may this number increase? Number of people in the world: increasing / decreasing / staying the same Amount of water in the world: increasing / decreasing / staying the same Therefore, amount of water per person: ncreasing / decreasing / staying the same Millennium Development Goals: What did the UN commit to in the year 2000? By 2015, halving… How can water be privatized? Companies… How deep is the well in Rajasthan? What has happened to the depth under the ground of the water table? What might have caused this?

  9. 5 facts to show the inequality in water use in the world 1 2 3 4 5

  10. Exam question: Describe the earth’s water budget (Say where the water is in the world)

  11. What is a turnover time? The time for a water particle to enter or leave a part of the system. On average it takes a water molecule 37,000 years from entering the ocean to leaving it. It takes 12-20 days for a molecule of water to enter a river and leave it. How many days do you think there is from a molecule of water entering the atmosphere to leaving it?

  12. What water sources are renewable or replenishable and what are non-renewable? Renewable are those which take a year or less to be replenished. 3 renewable: 7 non-renewable:

  13. What is sustainable water use? Humans use water in large quantities for: 1 2 3 4

  14. Values: Which value groups would say these things? ……………………………………………: Use water resources sustainably and nor diminish them to such a degree that they are non-replenishable …………………………………………….: Solutions can be found to overcome our unsustainable use of water resources

  15. Water conflict: the problems and solutions – mix and match

  16. Ecocentric solutions to water shortage: images Recycling of water from showers/baths Magic stones trick Limit water use Monitor water use Afforestation Efficient toilet systems (2 buttons, brick in cistern)

  17. Technocentric solutions to water shortage: images Cloud seeding Drought-resistant crops Water-efficient buildings e.g. recycle rainwater Synthetic water production Removal of chemicals from water before release from factories Dams Desalination plants Iceberg capture and transport

  18. How do ecocentists and technocentrists differ in their approach to water management? 8 marks

  19. The water cycle: a systems diagram • Draw a systems diagram of the water budget and cycle showing the storages and flows. • Make the boxes and flows correspond to the proportions shown in the table on page 217. • Label all stores and flows.

  20. The Aral Sea (film clips and pages 220-221) Where is it? How has it changed over the last 30 years? Why has it changed? Was this sustainable water usage? Why or why not?

  21. The Aral Sea Social effects: Economic effects: Environmental effects:

  22. Case study: The Aral Sea Watch the 2 journeyman clips Shrinking Sea Watch this film clip, 6 years later. Recovering sea? Is this a sustainable solution? Why or why not?

  23. Essay question: 30 minutes • Budget and conflict • Ecocentric • Technocentric

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