Understanding Earth's vanishing frozen world

Everyday people are asked to define the cryosphere, revealing how little known this crucial planetary system is.

What on Earth Is the Cryosphere?

NASA scientist Dr. Tom Wagner breaks down all components of the cryosphere, from backyard snowfall to massive polar ice sheets.

What the Cryosphere Actually Includes

3 feet of sea level rise could displace 100 million people.

NASA scientists explain projected sea level increases and the massive human displacement that could follow.

The Threat of a 3-Foot Sea Level Rise

The GRACE Follow-On mission lifts off to continue monitoring planetary ice sheets and water movement from space.

NASA Launches Satellite to Track Earth's Water

[00:24] What on Earth Is the Cryosphere?
[01:54] What the Cryosphere Actually Includes
[02:23] The Threat of a 3-Foot Sea Level Rise
[03:11] NASA Launches Satellite to Track Earth's Water

Earth's vanishing frozen world

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