The Arctic region consists of a vast, ice covered ocean surrounded by treeless permafrost.

These trees put their roots down in the permafrost, and the permafrost is thawing.

This building was built on the permafrost and has collapsed as the permafrost thaws.

Arctic Circle

Arctic Expedition.

Arctic, freezing, frigid.

And that water comes from melting the permafrost.

Methane is also beginning to escape from the permafrost.

One fifth of the earth's surface is covered by permafrost.

Polar bears live in the Arctic.

She has finally reached the Arctic.

Arctic sea ice is also shrinking

Let's talk about the Arctic first.

Ollantaytambo, Peru, and Arctic Village, Alaska.

First one is in the Arctic.

They fly south from the arctic region.

They set out on an arctic expedition.

And, of course, Arctic communities are toast.

We can now go to the Arctic.

And then something about an Arctic Expedition.

we'ii get to the arctic circle, lads!

And what they found, by doing research into the permafrost, was this bacteria.

Now let's go up to the Arctic Circle.

And now let's think about the Arctic Circle.

Great. Mmhm, sugar. Brand new, arctic blue convertible.

The Arctic is the area round the North Pole.

I really, really wanted to go to the Arctic.

Cape Dezhnev is 30 miles south of the Arctic Circle.

Have you heard of a bird called the Arctic Tern?

This is out at whale camp, on the Arctic Ocean.

Second, remember that the Arctic is really a frozen ocean.

We're finding more and more dead bears in the Arctic.

These ringed seals, these are the fatsicles of the Arctic.

An ice free Arctic Ocean may happen in this century.

Let me go to some point in the Arctic Circle.

So, let's say I'm sitting here in the Arctic Circle.

Mikaela, okay, my greatgreatgrandfather went to this Arctic mission, right?

If just three percent of the carbon locked up in the arctic permafrost is released as the world warms, it would offset all the savings that we need to make, in carbon, over the next 40 years to avoid runaway climate change.

Michiko talks as if she had been to the Arctic herself.

Michiko talks as if she had been to the Arctic herself.

The military of the Arctic nations is taking it really seriously.

An iceberg from the Arctic floated as far south as Bermuda.

Known as the arctic unicorn because of their strange spottled tusks.

longwall mining, fracking, tar sands, tar shale, deep ocean Arctic drilling.

This, of course, is the Arctic Ocean, the floating ice cap.