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Ecosystems

Sustainable use of the Arctic tundra

  • 3 things to know
  • A2 Unit 4

Overview

Three threats to the Arctic tundra, risk that a warming climate poses to Arctic infrastructure and two indigenous peoples of the Arctic.

What you need to know

Answer each one before you reveal it.

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Key term

Name three threats to the Arctic tundra.

Key term

Give two ways oil and gas extraction damages tundra.

Key term

Why do vehicle tracks persist in tundra for decades?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Name three threats to the Arctic tundra.

    Model answer

    Climate change, mineral and hydrocarbon exploitation, and growing tourism.

  2. 2

    Give two ways oil and gas extraction damages tundra.

    Model answer

    Roads, pipelines and drilling pads destroy vegetation that recovers extremely slowly, and spills contaminate soil and water that cannot flush clean.

  3. 3

    Why do vehicle tracks persist in tundra for decades?

    Model answer

    The vegetation mat is thin and slow-growing, and once it is broken the exposed dark soil absorbs heat and thaws, deepening the rut.

  4. 4

    Explain the risk that a warming climate poses to Arctic infrastructure.

    Model answer

    Buildings, roads and pipelines were founded on ground that was permanently frozen, and as it thaws the ground subsides and the structures fail.

  5. 5

    Name two indigenous peoples of the Arctic.

    Model answer

    The Inuit of Canada and Greenland, and the Sami of northern Scandinavia.

  6. 6

    Give two ways indigenous livelihoods depend on the tundra.

    Model answer

    Herding reindeer or hunting caribou, and fishing and hunting marine mammals along the coast.

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