Polar Facts

Bring together the strangest and most important polar science.

Visual learning: These pages use real satellite, wildlife, glacier, and polar landscape images from Wikimedia Commons. Final image URLs should be browser-tested.
Antarctica
AntarcticaAntarctica is Earth's coldest continent and is covered by a huge ice sheet.
Polar Bear
Polar BearPolar bears are Arctic marine mammals that depend heavily on sea ice.
Emperor Penguins
Emperor PenguinsEmperor penguins survive the extreme cold of Antarctica.
Iceberg
IcebergIcebergs are floating pieces of freshwater ice that broke from glaciers or ice shelves.

Opposite Geography

The Arctic is mostly ocean, while Antarctica is a continent.

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No Polar Bears in Antarctica

Polar bears live only in the Arctic.

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Antarctica Is a Desert

Deserts are defined by low precipitation, not heat.

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Most Freshwater Ice

Antarctica stores most of Earth's freshwater ice.

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Months of Daylight

At the poles, the Sun rises and sets only about once each year.

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Most of an Iceberg Is Underwater

Freshwater ice is less dense than seawater.

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The Arctic Is Warming Rapidly

Arctic warming exceeds the global average.

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Polar Regions Are Full of Life

Cold does not mean lifeless.

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Opposite Geography

That difference affects temperature, wildlife, human settlement, and ocean circulation.

No Polar Bears in Antarctica

Penguins occur naturally in the Southern Hemisphere, so wild polar bears and penguins never meet.

Antarctica Is a Desert

The Antarctic interior receives extremely little snowfall.

Most Freshwater Ice

If all of it melted, global sea level would rise by many tens of meters.

Months of Daylight

This creates months of continuous daylight followed by months of darkness.

Most of an Iceberg Is Underwater

Only a fraction of an iceberg usually rises above the surface.

The Arctic Is Warming Rapidly

Sea ice and snow feedbacks are important reasons.

Polar Regions Are Full of Life

Plankton, fish, birds, seals, whales, microbes, plants, and people form complex polar ecosystems.