We've got to follow it north until we hit the polar cap.

Maybe we should have tried to reach the edge of the polar cap.

Those white polar caps you see are ice and snow.

Ice may have been detected at the north polar cap.

And that white crescent out in the middle of things was the polar cap!

But he couldn't reach the polar cap without power the skid didn't have.

The polar caps were melting - the world water level was rising.

Apart from one small island and a polar cap, the entire planet was covered with water.

The mission has also given scientists some understanding of how the polar caps retreat.

Left alone, the polar cap will continue to shift and grate.

One day before dinner a group of twenty-two people arrived from around the polar cap.

The Athena moved north past the edge of the southern polar cap.

The south polar cap, especially, is comparable to glaciers on Earth.

However, it is thought that Triton must also have a north polar cap.

The south polar cap was tipped slightly toward them; it had almost disappeared.

These polar caps were first seen by the Voyager program spacecraft.

We use the polar caps as a bridge to get to the other landmasses.

The polar caps were tiny scraps of ice, hardly there at all.

Why when the polar caps are melting do we still insist on using dirty energy?

It also has a dark equatorial belt along with its bright polar caps.

Nothing but empty plains right up the polar cap.

If we stop global warming, will the polar caps refreeze?

The polar caps at both poles consist primarily of water ice.

The shuttle soared toward the polar cap of the blue-green world.

When the tilt or obliquity changes the size of the polar caps change.

It has two polar ice caps, the larger of which I call north.

Like the bottom of the ocean, or a polar ice cap.

The two polar ice caps appear to be made largely of water.

The Earth's polar ice caps have changed dramatically over the last 12,000 years.

The southern polar ice cap is putting on the most dynamic show.

It then proceeded to travel under the entire Polar ice cap.

What makes them think the polar ice cap is going to instantly melt?

"What do you call security agents at the south polar ice cap?

It's also difficult to guess how long it will take for the polar ice cap to disappear completely.

As a result, the northern polar ice cap is the frozen ocean.

It has an atmosphere, polar ice caps, seasonal changes and a 24-hour day.

If the polar ice caps melted, how much would the oceans rise?

The polar ice caps are diminishing because of global warming.

Following that event, she completed her mission under the polar ice cap and then headed south.

Actually, the melting process of glaciers and the polar ice caps has started.

But make no mistake - their relationship is as cold as a polar ice cap.

But there was no sign of life except for an artificial bubble on the polar ice cap.

Nearly all of Antarctica's coast is buried by the polar ice cap.

Especially noticeable, even at low magnification, are the polar ice caps.

Spencer's father is doing research into the melting of the polar ice cap in the Arctic.

Current international focus on global warming issues has drawn attention to the melting of the polar ice caps.

These advanced boats were also designed for operating beneath the polar ice cap.

The thick polar ice cap, in seasonal retreat, will be farther south.

The resulting heat evaporated water from the polar ice caps into the atmosphere.

Polar ice caps are some of the largest surface features on our planet and any changes to them, however small, could have far reaching effects.