|
Watch the video, right, carefully and outline your response to the following:
|
|
Subject Guide
An overview of global patterns and trends in the availability and consumption of water, including embedded water in food and manufactured goods.
|
|
|
|
What are the key points made in this video?
Explain them in your own words. |
Infographic analysis
- How many LITRES of water does the average American use in a year (you'll need to find a way to convert US Gallons to litres)?
- How many litres is that each day?
- If a bucket of water holds about 10 litres of water, how many buckets of water does an average American use each day?
- Comment on this; does it surprise you (it should!)? Why?
- What is meant by "hidden water"?
- What is meant by "Blue water", "Green water" and "Grey Water"?
- What are the problems if water levels fall below critical levels in rivers?
- What is the difference between physical and economic water scarcity?
- Use the world map to describe the patterns of water scarcity around the world. Break it down into:
- Which areas of the world experience physical water scarcity? Name countries and continents and consider lines of latitude. Study the map of world precipitation patterns: what do you notice about the level of precipitation in these areas? How does this help to explain the physical water scarcity?
- Which areas of the world experience economic water scarcity? Name countries and continents and consider lines of latitude. Study the maps of world precipitation and wealth: what do you notice? How does this help to explain the physical water scarcity?
- Why do you think the areas in blue do not experience much water scarcity?
- Why are there no estimates for the areas in grey? There is more than one answer here - name areas and suggest a reason.
Document/text book analysis
Use your textbook and your knowledge from previous study at IB to answer the following:
- What role has population growth played in water insecurity?
- Use the data on page 247 of your book to create a graph or diagram to show the world's water budget.
- Describe and comment, with reference to data, the changing global use of water from 1990-present day,
- To what extent do increases in water demand mirror population change? What other factors have influenced demand for water?
- Why do amounts of embedded water in a product vary from country to country? Illustrate this with examples.
- Explain what is meant by "exported drought".
- How is water scarcity different from aridity or low rainfall?
| pressures_on_water_supples_unesco.pdf |
Document
Task 1 – Using the file above, take notes on the four main sources that create demand, namely agriculture, production of energy, industrial uses and human consumption.
Task 2 – Take notes on the likely impacts of climate change on future water supplies and vulnerable populations
Task 1 – Using the file above, take notes on the four main sources that create demand, namely agriculture, production of energy, industrial uses and human consumption.
Task 2 – Take notes on the likely impacts of climate change on future water supplies and vulnerable populations
Extras worth a look
|
|
|