Oldest level - Freedom and dangers - Student's book

How does emission of greenhouse gases affect the climate?

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Climate changes affect the work of Ane Sofie and Flemming on the inland ice. Why are they affected by climate changes? How is this connected to the greenhouse effect? You will show this with two experiments described on the following pages. You must make an experiment report for both, so remember to take pictures of your setup.

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The first experiment is called "CO₂ is a greenhouse gas". Here you examine why CO₂ is a greenhouse gas and how it affects temperature. The next experiment is called "The ice is melting – does the water level rise?" Here you will examine whether the water level always rises when ice from a glacier or an iceberg melts.

The glacier foot on the picture is from Sermeq Kujalleq. It has been moving forth and back through time.

The map shows the movements of the foot from the middle of the 19th century to 2018. On the next page you will find more information about glaciers.

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Source: https://www.geocenter.dk/sermeq-kujalleq-gletsjeren/

The Greenhouse Effect Experiment 

Hypothesis: What do I expect will happen?

Description: What is the point of the experiment?

Results: Insert pictures of your results.

Results: What did I learn?

Conclusion: Does my hypothesis agree with my results? Why/why not?

Sources of error: Did something go wrong/what can be done better next time?

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Welcome to the Icefjord Centre. The Icefjord Centre is a house holding many stories of ice and life with the ice. The Centre is located at Ilulissat in Greenland.

How Melting Ice Causes Sea Level Rise 

Error sources: Did something go wrong/what can be done better next time?

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This is what it looks like at the Icefjord Centre in wintertime. On the next page you will see where Ilulissat is located.

How is experiment 1 relevant to the climate changes in Ilulissat?

How does CO₂ contribute to the greenhouse effect?

Where does the emission of CO₂ come from?

Now you are going to listen to a podcast called Freedom and Dangers. You will hear about Ane Sofie and her husband Flemming. They tell about the freedom of being sledge drivers at the Icefjord. You will also learn about the importance of listening to your sled dogs when driving where the ice has become thin.

When a lot of snow is pressed together, layers of ice are formed. The increasing weight of this ice mass will make it start moving through the landscape. This is called a glacier. In the picture you see a glacier moving and finally calving. This means that pieces of ice break off the glacier and float into the water.

Glacier

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The climate comprises weather conditions on the planet Earth, like temperature and fall of rain. Climate changes may cause problems. Climate changes in Ilulissat have caused the ice to melt faster and become an unpredictable partner that life around the Icefjord must adjust to. Climate changes can be natural as well as man-made. When we talk about climate changes we usually refer to changes brought about by humans, often with focus on emission of greenhouse gases.

Greenhouse gases prevent the Earth from freezing to ice. Without greenhouse gases humans would not be able to live on Earth. Carbon dioxide (CO₂) is the greenhouse gas most often heard about but there are others. Methane (CH₄) and water vapour (H₂O) are greenhouse gases too. Humans emit greenhouse gases when using fossil fuels like coal and oil. Too much greenhouse gas produces what is called the grenhouse effect. You will hear more about that in this video.

Climate Change

What is the greenhouse effect and how does it work?

How is experiment 2 relevant to the climate changes in Ilulissat?

How can you compare the ice cubes from the experiment with glaciers and icebergs?

Why is it a problem that glaciers melt faster than they grow?

Welcome to the Icefjord Centre Map Ilulissat I live here Before we listen Listen and talk My reference book Glacier Climate changes Experiments Experiment 1 Experiment 2

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