Polar stratospheric clouds within the vortex provide a substrate for the ozone destroying photochemical reactions that are catalysed by early springtime sunlight.

Polar bears?

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Clouds.

Antarctica.

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Clearing up.

This is The Journey of the Polar Lights.

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like most clouds.

There are clouds, right.

Now, stop pulling!

Antarctica s Point of No Return

What's next Antarctica.

Polar bears are amazing hunters.

I dreamed of going to the polar regions.

That's bad news for the polar bears.

Crashing the SDR

It will be called the School in the Cloud.

Commercialize the SDR

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It will be called the School in the Cloud.

They get a bad rap.

A mist spread over the sea.

What'd she draw, skipper?

the lowest of the low, mounted upon a cloud.

Yeah, how soon's the drawing?

In Red Cloud's camp.

A Mania for Diagnosing Bipolar Disorder

That's outside Antarctica.

With tears augmenting the fresh morning's dew, Adding to clouds more clouds with his deep sighs

What about rarer ones, like the lenticularis, the UFO shaped lenticularis cloud?

If you close your eyes and think of a cloud, it's probably one of these that comes to mind.

A Special Moment for Special Drawing Rights

Our plane was flying above the clouds.

Evan Grant Let's do pull.

Cloud cover I'm going to show it to you is up.

And these clouds, these rarer clouds, remind us that the exotic can be found in the everyday.

Mentions of polar bears drowning four percent.

They cover the earth, except for Antarctica.

Finally, I want to take you to Antarctica.

Parties shall not include the quantities of any Kyoto Protocol units in the registry's mandatory cancellation accounts as defined in the data exchange standards Retirement account' (paragraph 21 (f)).