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Earth's Harshest Biome

Short answer: Tundra is a treeless biome where cold temperatures and short growing seasons limit plant growth. Arctic tundra rings the far north, and alpine tundra occurs on high mountains; small areas of Antarctic tundra exist too.

Below the surface lies permafrost, ground that stays frozen for at least two years in a row. Mosses, lichens, sedges and dwarf shrubs grow there, and animals include caribou, Arctic foxes and many migratory birds that breed in summer. Permafrost holds large amounts of organic carbon, and warming that thaws it can release carbon dioxide and methane. The footage shows tundra landscapes behind the presenter.

VideoWrite-up2 sources

In collections:Extreme Cold

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What should you know about Earth's Harshest Biome?

Quick facts. Each one stands alone and has a stable ID you can cite.

  1. Tundra is a treeless biome.

    DD-212-F01 · Write-up · Exhibit A (Treeless)

  2. There's Arctic and alpine tundra.

    DD-212-F02 · Write-up · Exhibit B (Arctic and alpine)

Video transcript: Earth's Harshest Biome: Tundra Soil Stays Frozen Year-Round Just Below the Surface

DID YOU KNOW? The tundra is a vast and stark landscape and it wraps around the Earth's northern and southern extremes. Characterized by its cold, arid conditions and permafrost, a permanently frozen layer beneath the surface, the tundra is a place where life clings to survival. Despite its harsh environment, the tundra is teeming with life from hearty vegetation like mosses and lichens, to resilient animals such as Caribou, Arctic foxes, and migratory birds. This fragile ecosystem plays a significant role in our planet's acting as a crucial carbon sink. Yet the tundra faces threats from climate change which is causing rapid permafrost melts and altering its delicate balance. NOW YOU KNOW!

Burned-in captions, read frame by frame (see transcript.md) · 43.1s Reel ·

Video coming soonEarth's Harshest Biome · Instagram Reel
Earth's Harshest Biome: Tundra Soil Stays Frozen Year-Round Just Below the Surface Instagram Reel · · 43.1s

The write-up

Tundra soil stays frozen year-round just below the surface. Thawing permafrost could release stored carbon.

  1. Exhibit A

    Treeless

    Tundra is a treeless biome.

  2. Exhibit B

    Arctic and alpine

    There's Arctic and alpine tundra.

  3. Exhibit C

    Permafrost

    Permafrost stays frozen for two years or more.

  4. Exhibit D

    Life

    Mosses, lichens, caribou and foxes live there.

  5. Exhibit E

    Carbon

    Thawing permafrost can release carbon.

Questions people ask about Earth's Harshest Biome

What defines tundra?

Short growing seasons.

Source: Write-up · Exhibit A (Treeless) · Wikipedia: Tundra

Where is alpine tundra?

Also Arctic tundra.

Source: Write-up · Exhibit B (Arctic and alpine) · Wikipedia: Tundra

What is permafrost?

Below the surface.

Source: Write-up · Exhibit C (Permafrost) · Wikipedia: Permafrost

Which animal lives on the tundra?

Also Arctic foxes.

Source: Write-up · Exhibit D (Life) · Wikipedia: Tundra

What can thawing permafrost release?

Stored carbon.

Source: Write-up · Exhibit E (Carbon) · Wikipedia: Permafrost

Test Your Knowledge

All quizzes →

5 questions, all from this case file. Answers are revealed instantly.

  1. What defines tundra?

    1. Treeless, cold land
    2. Rainforest
    3. Desert dunes
    4. Coral reef
    Show the answer

    Answer: A. Treeless, cold land Short growing seasons. Source: Write-up · Exhibit A (Treeless) · Wikipedia: Tundra

  2. Where is alpine tundra?

    1. On high mountains
    2. In oceans
    3. In caves
    4. At the equator's coast
    Show the answer

    Answer: A. On high mountains Also Arctic tundra. Source: Write-up · Exhibit B (Arctic and alpine) · Wikipedia: Tundra

  3. What is permafrost?

    1. Ground frozen for at least two years
    2. Snow on roofs
    3. Sea ice
    4. Hail
    Show the answer

    Answer: A. Ground frozen for at least two years Below the surface. Source: Write-up · Exhibit C (Permafrost) · Wikipedia: Permafrost

  4. Which animal lives on the tundra?

    1. Caribou
    2. Camel
    3. Gorilla
    4. Iguana
    Show the answer

    Answer: A. Caribou Also Arctic foxes. Source: Write-up · Exhibit D (Life) · Wikipedia: Tundra

  5. What can thawing permafrost release?

    1. Carbon dioxide and methane
    2. Oxygen only
    3. Gold
    4. Fresh water only
    Show the answer

    Answer: A. Carbon dioxide and methane Stored carbon. Source: Write-up · Exhibit E (Carbon) · Wikipedia: Permafrost

Cite this case file

Easterling, Marcus. "Earth's Harshest Biome." The Detail Department (DetailEnjoyer), case file DD-212, last updated Mar 25, 2024. https://detailenjoyer.com/case/earths-harshest-biome/

Permalink: https://detailenjoyer.com/case/earths-harshest-biome/ · Last updated

Markdown version

Cite a single fact by its ID, for example DD-212-F01 → https://detailenjoyer.com/case/earths-harshest-biome/#DD-212-F01

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