Now that you have completed this study session, you can assess how well you have achieved its Learning Outcomes by answering these questions.

Rewrite the paragraph below using terms from the list provided to fill the gaps.

droughts, floods, global warming, greenhouse gases, rainfall, sea levels.

The rise in the mean global surface temperature referred to as ……………… is partly due to an increase in the concentration of ……………… in the atmosphere. This change in the global climate is expected to melt Arctic sea ice, leading to rising ……………… and to alter the pattern of ………………, so that there are more severe ……………… in wetter regions, and more severe ………………in drier regions.

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Which of the following statements are false? In each case explain why it is incorrect.

  1. The global climate is affected by fluctuations in the amount of energy reaching the Earth from the sun.
  2. Volcanic eruptions into the atmosphere increase the temperature of the air and contribute to global warming.
  3. Greenhouse gases are only produced by human activity.
  4. Methane released by decomposing solid waste and livestock farming contributes to the greenhouse effect.

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Rearrange the following statements into the correct order to produce a coherent explanation of how the rising emission of greenhouse gases generated by human activity is contributing to global warming.

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Complete the following statements of evidence that climate change is occurring in Ethiopia by writing the missing numbers in the spaces provided:

  1. Since 1950 the average minimum temperature in Ethiopia has been rising by about …… ºC per decade.
  2. Before 1990 there were 10 floods in Ethiopia, but between 1990 and 2014 there were …… reported flood events.
  3. Before 1990 there were 6 droughts in Ethiopia, but between 1990 and 2014 more than …… drought events were reported.
  4. In 1965, about 1.5 million people were affected by droughts, but in 2003 about …… million people in Ethiopia were drought-affected.

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