3.4 Often too little

• Aardrijkskunde
• Middelbare school
• vmbo t, mavo, havo, vwo
• Leerjaar 2

3.4 Often too little

Part 1

Learning outcomes

1. You know that water stress can arise from physical water shortage and economic water scarcity.

2. You understand why increasing water stress can lead to a water war.

3. You can assess a number of measures to alleviate water stress.

What could be a reason for water scarcity?

1. Climate warming: more drought

2. Population growth: more water consumption per person

(especially in rich countries)

Water stress

All problems that arise due to shortage of clean water.

This can lead to conflicts.

Why is there "stress" in North-Africa and China?

water stress

physical water shortage

Too little water in an area to meet the needs of residents without disrupting nature.

economic water shortage

Too little invested in an area to bring water to the area.

Kan er door waterstress een wateroolog ontstaan?

Could water scarcity cause a water war?

Water war

Armed conflict between two countries involving water.

Cause:

1. Shortage of drinking water

2. Shortage of irrigation water

3.4 Often too little

Part 2

Learning outcomes

1. You know that water stress can arise from physical water shortage and economic water scarcity.

2. You understand why increasing water stress can lead to a water war.

3. You can assess a number of measures to alleviate water stress.

How can you safe water?

1. Hold on to what you have.

2. Use less.

Think of three advantages of dams and three disadvantages of dams

You can retain water behind a dam.

Concrete or earthen wall in a river behind which the water is held.

Advantages of dam:

1. Regulate water level downstream.

2. Generate electricity.

3. Supply of drinking and irrigation water.

Disadvantages of dam:

1. Forced relocation of residents.

2. Reservoir silts up after a while. As a result, it is no longer a real river in the long term.

3. Breakthrough by earthquake, wall of water towards inhabited world.

4. Unfair distribution of water.

Use less water:

1. Use better irrigation techniques (drip irrigation)

2. Encourage households and businessess to use less and reuse more.

HW GEO

make the ex