Reducing Emissions (Strategies and Trade-offs) Flashcards

1️⃣ Familiarise yourself with the flashcards:

  • Look through all the flashcards to see what's on both sides.
  • Make sure you understand the information on each card. If something's unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

  • Look at the question or prompt on each card and try to remember the answer before flipping it over.
  • Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

  • Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
  • Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

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How can saving energy in the home help to reduce carbon dioxide emissions?

If we use less energy for heating, lighting and appliances, we need to burn less fuel. Burning less fuel means less carbon dioxide is released.

How can using public transport, walking or cycling instead of driving reduce emissions?

Fewer car journeys mean less petrol or diesel is burned. This reduces the amount of carbon dioxide released from vehicles.

Why do renewable energy sources like wind and solar help to reduce carbon dioxide emissions?

They make electricity without burning fossil fuels. This means they add little or no extra carbon dioxide to the air.

What is carbon capture and storage (CCS)?

Carbon capture and storage is a method to trap carbon dioxide from power stations. The gas is then pumped deep underground so it cannot escape into the atmosphere.

How does planting trees help to reduce carbon dioxide levels in the air?

Trees take in carbon dioxide during photosynthesis and store carbon in their wood. Planting more trees removes some carbon dioxide from the atmosphere.

How can governments encourage people and companies to cut greenhouse gas emissions?

They can use laws, taxes and grants. For example, they can tax fossil fuels. They can also set emission limits or give money to support clean energy.

Why are international agreements important for reducing climate change emissions?

Greenhouse gases mix through the whole atmosphere, so emissions from one country affect all others. Agreements encourage many countries to reduce emissions together.

What is meant by a trade-off when choosing ways to reduce emissions?

A trade-off is when a choice has both good and bad effects. You accept one problem, such as higher cost, to gain a benefit, such as lower emissions.

Give one economic trade-off of replacing coal power stations with wind farms.

Wind farms reduce fuel use and emissions, which can save money in the future. But they cost a lot to build and may raise energy prices at first.

Give one social trade-off of asking people to fly less to cut emissions.

Flying less reduces carbon dioxide released by planes. However, it can make holidays and visiting family or friends in other countries harder.

Give one environmental trade-off of building many new wind farms or dams to cut emissions.

They produce low-carbon energy, which helps the climate. But they can damage wildlife habitats and change the natural landscape.

Why might poorer countries find it harder than richer countries to reduce greenhouse gas emissions?

Poorer countries need cheap energy to build homes, jobs and transport. They may not afford new low-carbon technologies or have good power networks.

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