2.4.1

Overview of Cold Environments

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Overview of Cold Environments

Cold environments (i.e. tundra and polar) have the following general characteristics:

Illustrative background for Where are polar and tundra biomes?Illustrative background for Where are polar and tundra biomes? ?? "content

Where are polar and tundra biomes?

  • The Arctic and Antarctica are examples of polar biomes.
  • Alaska, Finland, and Siberia are examples of tundra biomes.
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What is the polar/tundra climate like?

  • Temperatures in polar and tundra biomes are very low:
    • Polar regions are always colder than 10oC, and can reach -90oC.
    • Tundra regions are always colder than 10oC and in the winter average about -35oC.
  • Levels of rainfall are low in both polar and tundra regions, but it rains more in tundra regions.
  • There are four different seasons in both polar and tundra biomes.
Illustrative background for What is the soil like in polar & tundra biomes?Illustrative background for What is the soil like in polar & tundra biomes? ?? "content

What is the soil like in polar & tundra biomes?

  • In polar regions, there is no soil open to the air. An ice sheet covers polar regions all year round.
  • In tundra regions, permafrost covers the ground with a tiny layer of infertile, acidic soil on top of it.
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Which plants live in polar & tundra environments?

  • Plant life is rare in both polar and tundra regions.
  • In polar regions, algae, moss, lichen, forbs, and some grass can just about survive. But they do not grow very much.
  • In tundra regions, the same plants exist but are able to grow more. Some trees are able to survive in the tundra.
Illustrative background for Which animals live in the polar/tundra environments?Illustrative background for Which animals live in the polar/tundra environments? ?? "content

Which animals live in the polar/tundra environments?

  • Polar bears!
  • In polar regions, biodiversity is low. Polar bears, small mammals (like the Arctic fox and Arctic hare), Emperor penguins, walruses, and seals can survive.
  • In the tundra, there is a little more biodiversity, with animals like wolves, reindeer, owls, and mountain goats.
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People in polar/tundra

  • Nobody lives permanently in Antarctica. But some scientists do stay there for stints to do research.
  • Very few people live in polar or tundra regions.
  • The indigenous Inuit people live in the tundra in Canada and because of the fossil fuel supply, some people who work for oil companies like Shell or Exxon will work on oil fields in Canada or Siberia.

Jump to other topics

1The Challenge of Natural Hazards

1.1Natural Hazards

1.2Tectonic Hazards

1.3Weather Hazards

1.4Climate Change

2The Living World

3Physical Landscapes in the UK

3.1The UK Physical Landscape

3.2Coastal Landscapes in the UK

3.3River Landscapes in the UK

3.4Glacial Landscapes in the UK

4Urban Issues & Challenges

5The Changing Economic World

6The Challenge of Resource Management

6.1Resource Management

6.2Food

6.3Water

6.4Energy

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