Yr11. Lesson 3 Climate Change.pdf Edexcel course

GCSE geography lesson fragile Environments

1. Assessment Outline

4. Starter Activity
1.What things do you do that contribute to
Bahrain’s carbon footprint?

2. How could you reduce it?

3. In your opinion, what is the biggest challenge
when it comes to climate change?

5. Learning Objectives
●Identify the key human activities contributing to
climate change.

●Explain how the enhanced greenhouse effect works.

●Evaluate which human causes are most significant


Title: How can human activity cause climate change?

6. What's happened to global
temperatures in the past 150 years?

8. The Enhanced Greenhouse Effect
Together, we are going to draw a diagram to show the difference between the Greenhouse Effect
and the Enhanced Greenhouse Effect.

You will need:

-Pencil (for drawing)
-Pen (for labels)

We will draw the outline together, then you will add some colour and complete some other tasks.

9. The Greenhouse Effect vs The Enhanced Greenhouse Effect

10. Task 1: The Enhanced Greenhouse Effect.

a)Finish off your diagram that explains the Enhanced Greenhouse Effect.
b)Write a paragraph next to your diagram that explains the difference.

Your diagram and explanation should include these words:
-Sun
-Shortwave radiation
-Atmosphere
-Ground
-Warming
-Rising air
-Longwave radiation
-Greenhouse gases
-CO
2

11. Competition time!!
Write the answer in the back of your book.
What are the human causes of climate change?
Taken from the Pearson Edexcel syllabus.
Complete the handout to make notes on how each of these factors contribute to climate change.

12. Industry Transport
Energy Farming
Human Causes of
Climate Change

13. Explanation
What are the human causes of climate change?

These are the main greenhouse gases released by human activities.
greenhouse gas human activities releasing this greenhouse gas
carbon dioxide (CO₂) burning of fossil fuels (e.g. power stations), vehicles, deforestation that
includes burning cleared vegetation (deforestation also means fewer
trees to absorb CO
2
)
methane (CH₄) released by livestock (especially cows) and during the process of rice
cultivation
nitrous oxide (N₂O) use of artificial fertilisers in farming, burning fossil fuels, industrial
processes and waste processes
chlorofluorocarbons
(CFCs)
aerosols, refrigeration units, air conditioning

14. Recap:

How will you structure a 6 mark question?

16. 7(e) For this question candidates were required to assess the importance of the causes of climate change
shown. Candidates were usually able to score some marks some marks on this question . Weaker responses
tended to list the different factors and provide a description of how they were linked to climate change. There
were however stronger responses which demonstrated a clear understanding of the causes of climate changes,
categorising the factors into natural and human. Responses that included a clear judgement about which of
these (or groups of these) factors were the most important were able to more effectively demonstrate they had
responded to the command word. There is no requirement to cover all aspects of the resources in these
questions. Some candidates were able to affectively assess the important of just a few of these but would
provide developed explanations as to why these were the most/least important.