IB Geography Topic C.4.3 New Technology and Sustainable Development Revision Notes (SL/HL)

IB Geography Topic C.4.3 New Technology and Sustainable Development Revision Notes (SL/HL) | RevisionDojo

Written by official IB examiners

Innovations for Sustainable Resource Use

As global resource demands rise, sustainable innovations are essential for balancing human needs with environmental preservation.
This section explores three key innovations: solar power, desalination, and remote monitoring.

Solar Power: Energy Generation in Deserts

Why Deserts?

Deserts receive abundant sunlight, making them ideal for solar power.
For example, the Sahara Desert receives enough solar energy in six hours to meet global energy needs for a year.

Example

The Desertec project aimed to harness solar energy in North Africa to power Europe.
Although the project shifted focus, it inspired solar initiatives in Morocco, Tunisia, and Algeria.

Benefits of Solar Power

Renewable and Abundant: Solar energy is inexhaustible and widely available.
Low Carbon Emissions: Solar power significantly reduces greenhouse gas emissions compared to fossil fuels.
Energy Independence: Countries can reduce reliance on imported fossil fuels by investing in solar infrastructure.

Note

Tip

Desert regions have high solar potential due to clear skies and minimal rainfall, ensuring consistent energy production.

Challenges and Solutions

High Initial Costs: Solar infrastructure requires significant upfront investment.

Solution: Falling costs of solar panels and international funding make projects more accessible.

Energy Storage and Transmission: Storing and transmitting solar energy over long distances is challenging.

Solution: Advances in battery technology and high-voltage transmission lines improve efficiency.

Environmental Impact: Large solar farms can disrupt desert ecosystems.

Solution: Careful site selection and minimizing land use can reduce ecological harm.

Common Mistake

Note

A common misconception is that solar panels work efficiently in all climates. In reality, dust and extreme heat can reduce their effectiveness in desert regions.

Desalination: Turning Seawater into Freshwater

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Paywall

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Note

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Tip

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Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

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Innovations for Sustainable Resource Use

As global resource demands rise, sustainable innovations are essential for balancing human needs with environmental preservation.
This section explores three key innovations: solar power, desalination, and remote monitoring.

Solar Power: Energy Generation in Deserts

Why Deserts?

Deserts receive abundant sunlight, making them ideal for solar power.
For example, the Sahara Desert receives enough solar energy in six hours to meet global energy needs for a year.

Example

The Desertec project aimed to harness solar energy in North Africa to power Europe.
Although the project shifted focus, it inspired solar initiatives in Morocco, Tunisia, and Algeria.

Benefits of Solar Power

Renewable and Abundant: Solar energy is inexhaustible and widely available.
Low Carbon Emissions: Solar power significantly reduces greenhouse gas emissions compared to fossil fuels.
Energy Independence: Countries can reduce reliance on imported fossil fuels by investing in solar infrastructure.

Note

Tip

Desert regions have high solar potential due to clear skies and minimal rainfall, ensuring consistent energy production.

Challenges and Solutions

High Initial Costs: Solar infrastructure requires significant upfront investment.

Solution: Falling costs of solar panels and international funding make projects more accessible.

Energy Storage and Transmission: Storing and transmitting solar energy over long distances is challenging.

Solution: Advances in battery technology and high-voltage transmission lines improve efficiency.

Environmental Impact: Large solar farms can disrupt desert ecosystems.

Solution: Careful site selection and minimizing land use can reduce ecological harm.

Common Mistake

Note

A common misconception is that solar panels work efficiently in all climates. In reality, dust and extreme heat can reduce their effectiveness in desert regions.

Desalination: Turning Seawater into Freshwater

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

1 Changing Population3 subtopics

2 Global Climate - Vulnerability and Resilience3 subtopics

3 Global Resource Consumption and Security3 subtopics

4 Power, Places and Networks (HL only)3 subtopics

5 Human Development and Diversity (HL only)3 subtopics

6 Global Risks and Resilience (HL only)3 subtopics

Option A Freshwater - Drainage Basins4 subtopics

Option B Oceans and Coastal Margins4 subtopics

Option C Extreme Environments4 subtopics

Option D Geophysical Hazards4 subtopics

Option E Leisure, Tourism and Sport4 subtopics

Option F The Geography of Food and Health4 subtopics

Option G Urban Environments5 subtopics

IB Geography C.4.3 New Technology and Sustainable Development Notes

Innovations for Sustainable Resource Use

Solar Power: Energy Generation in Deserts

Why Deserts?

Benefits of Solar Power

Challenges and Solutions

Desalination: Turning Seawater into Freshwater

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Innovations for Sustainable Resource Use

Solar Power: Energy Generation in Deserts

Why Deserts?

Benefits of Solar Power

Challenges and Solutions

Desalination: Turning Seawater into Freshwater

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

1 Changing Population3 subtopics

2 Global Climate - Vulnerability and Resilience3 subtopics

3 Global Resource Consumption and Security3 subtopics

4 Power, Places and Networks (HL only)3 subtopics

5 Human Development and Diversity (HL only)3 subtopics

6 Global Risks and Resilience (HL only)3 subtopics

Option A Freshwater - Drainage Basins4 subtopics

Option B Oceans and Coastal Margins4 subtopics

Option C Extreme Environments4 subtopics

Option D Geophysical Hazards4 subtopics

Option E Leisure, Tourism and Sport4 subtopics

Option F The Geography of Food and Health4 subtopics

Option G Urban Environments5 subtopics