In a few places, Like along riverbanks and cliffs.

where the land slips away it exposes this, the permafrost.

It's nice to get my hands on it.

If s just soil stuffed full of plants, stuffed full of carbon

and frozen in ice.

And although it might not look very interesting,

this stuff is really important for our atmosphere.

That's because sealed in the permafrost is methane.

The danger is if the permafrost was to melt as a result of global warming,

it could release methane on a massive scale.

This would dramatically accelerate global warming.

Worryingly, here in Siberia,

there are signs the permafrost is already starting to melt.

Temperatures are rising faster here than anywhere else on the planet.

Although you'd never know it.