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    On Thin Ice:
    Expedition to a Crumbling Ice Shelf

    Scientists blog from Antarctica and provide a glimpse of what it's like to do research in the field. Read their blog ...

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    Icelights: Answers to your burning questions about ice and climate

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    What is the Cryosphere?

    When scientists talk about the cryosphere, they mean the places on Earth where water is in its solid form, frozen into ice or snow. Read more ...

About the Cryosphere

About the Cryosphere

What is the Cryosphere?

frozen world

All About the Cryosphere

All About Frozen Ground

All About Glaciers

All About Snow

All About Sea Ice

All About Arctic Climatology and Meteorology

Studying the Cryosphere

IceTrek

Antarctic Megadunes

The Arctic Ice Dynamics Joint Experiment

Snow, Ice & Climate Change

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Arctic Sea Ice News & Analysis

IceLights: Your Burning Questions about Ice and Climate Change

The State of the Cryosphere

Repeat Photography of Glaciers

Photo Gallery

Explore the Earth's frozen places in this collection of photographs and images from the NSIDC archives.

Quick Facts

Find basic information on sea ice, ice sheets, ice shelves, and icebergs.

Educational Resources

Educational Resources

Cryosphere Glossary

Repeat Photography of Glaciers

Data on Virtual Globes: Google Earth files

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