Geo 2026: Saving energy: people, governments, the UAE, Qatar and Nepal
Sustainable energy comes from sources that will not run out and do not damage the environment. Everyone, from families to governments, can help.
What individuals can do
Energy-efficient homes: insulation in walls and roofs (keeps heat in during winter and out in summer); double glazing, heavy curtains and shutters; solar panels; efficient heating (gas fires and underfloor heating; closing doors keeps heat in smaller spaces) and well-insulated hot water tanks.
Reduce waste: reusable bags, buying fewer longer-lasting items.
Carbon footprint: the total greenhouse gases (especially carbon dioxide) produced by a person, product or activity, from electricity, car and plane travel, and things we buy. Measuring it shows which activities to cut.
What governments can do
Local government: solar panels on schools, hospitals and council buildings; cycle lanes and walking routes; recycling and food waste schemes; LED street lights; insulating social housing.
The UAE: large solar power projects; green building rules and efficient air conditioning (important in a hot climate); metro systems, better public transport and electric vehicles; long-term national strategies to cut emissions. Organisations such as Goumbook raise awareness and encourage sustainable lifestyles.
Two case studies
Nepal (developing, mountainous): steep rivers make micro hydropower suitable: small plants bring electricity to remote villages beyond the national grid. Benefits: lighting, radios and TVs, mobile phones, computer classes, longer shop hours and mills that replace hard manual work. Problems: when the national grid arrives, many customers switch (over half in some villages), making loans hard to repay; linking micro hydro to the grid is the solution being tried.
Explained step by step
Why it suits Nepal: Nepal is mountainous, with many fast-flowing rivers and streams. Many villages are remote and far from the national electricity grid, so building power lines to them is very expensive. A micro hydro plant uses a small local river to turn a turbine, giving clean electricity without a large dam.
Benefits: lighting in the evening, radios, TVs and mobile phones, computer classes, longer shop hours and mills that replace hard manual work.
The surprising problem: when the national grid finally reaches a village, many customers switch to it. The micro hydro scheme then has fewer paying customers, so it becomes hard to repay the loans that built it. The solution being tried is to connect micro hydro to the grid, so it can keep selling its electricity.
Lesson: a sustainable scheme must also be financially sustainable.
Common mistakes and exam tips
Saying Qatar has stopped using gas: Qatar is diversifying with solar, but its economy is still built on natural gas.
Describing micro hydro as a big dam: it uses small local rivers and streams, not large reservoirs.
Vague individual actions: explain how each saves energy, for example 'insulation reduces heat loss, so less energy is needed for heating'.
Defining carbon footprint as just CO2 from cars: it is all the greenhouse gases from a person, product or activity.
Chambamontera, Peru: the micro-hydro link on your slide
Where: a remote village in the Andes mountains of northern Peru, more than two hours by rough track from the nearest town, Jaรฉn. Most people are subsistence farmers who also grow some coffee.
The problem: steep slopes and roads that close in winter made connecting to the national grid economically impractical, so there was no electricity for lighting, heating or businesses.
The solution: a run-of-the-river micro-hydro scheme built with the charity Practical Action. A canal diverts river water into a small tank (forebay); it then flows down a steep pipe (penstock) to turn a turbine and generator. There is no large dam or reservoir.
Cost: about US$51,000, paid for by the government, Japanese investment and the local community; each family contributed about US$750, with credit to help.
Benefits: electric light replaced kerosene lamps (less fire risk and cleaner indoor air); children can study after dark; vaccines and medicines can be kept cold; new businesses such as coffee processing; and less wood is burned, reducing deforestation and soil erosion.
Why it is sustainable: it is renewable, built with local labour and materials, and cheap to run.
Using the carbon footprint calculator
1. Calculate honestly: enter your real travel, home energy use, food and shopping.
2. Record: your total score and the one activity that contributed most.
3. Explain: why does that activity produce high emissions? Travel by car or plane burns fossil fuels; electricity may come from fossil fuel power stations; products use energy to make and transport.
4. Judge: is it something you could realistically change? For example, taking the metro instead of being driven is easier than never flying.
Why measure it? Your slide says measuring helps you understand how your lifestyle affects the environment, identify which activities produce the most emissions and learn practical ways to reduce your impact.
Explain why micro hydropower is suitable for rural Nepal.
- Nepal is mountainous, with many fast-flowing rivers and streams.
- Many remote villages are far from the national electricity grid.
- Small hydro plants use local rivers to give clean electricity cheaply, without big dams.
Answer: Steep rivers and remote villages without grid power.
Individuals: switch off, LED bulbs, insulation, double glazing, solar panels, cut waste, measure their carbon footprint. Governments: national (renewable projects, grants, laws, taxes, rail, targets) and local (solar on public buildings, cycle lanes, recycling, LED street lights). Qatar: Al Kharsaah solar plant (800 MWp, 2022, 10% of peak demand). Nepal: micro hydropower for remote villages.
- Sustainable
- Meeting the needs of people today without harming the ability of future generations to meet their needs.
- Solution
- Erosion where water dissolves rocks such as chalk and limestone; also transport of dissolved minerals.
- Deforestation
- The cutting down and removal of forest.
All GCSE and International GCSE Geography A key terms and definitions โ
Try two quick questions
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2 more questions
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How does double glazing make a home more energy efficient?
- It generates electricity
- It lets more heat escape
- It makes the rooms bigger
- It reduces heat loss through the windows
Show the answer
Answer: It reduces heat loss through the windows
Double glazing keeps heat in, so less energy is needed for heating.
Which is counted in a person's carbon footprint?
- Only the coal their country owns
- Only the size of their home
- Only the trees they plant
- Greenhouse gases from their electricity, travel and the things they buy
Show the answer
Answer: Greenhouse gases from their electricity, travel and the things they buy
A carbon footprint is the total greenhouse gases produced by a person, product or activity.
Check you have got it
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- Pearson Edexcel International GCSE Geography A (4GE1) specification, topic Paper 2, Topic 4: 4.3
- TotalEnergies: Al Kharsaah solar power plant, Qatar
- MEES: QatarEnergy expands low-carbon projects (March 2022)
- Internet Geography: Chambamontera micro-hydro scheme
Checked by the GCSE-ready editorial team, 23 October 2026. Last updated 2 October 2026. Spotted a mistake? Tell us and we will fix it.