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Do nations really need a government? Video, 00:01:22Do nations really need a government?

How to be a polar explorer. Video, 00:01:48How to be a polar explorer

Huge glacier retreat triggered in 1940s

El Nino's long reach to Antarctic ice

China's first tourist flight to Antarctica. Video, 00:00:34China's first tourist flight to Antarctica

China hails 'first Antarctica flight'

Mt Hope installed as 'UK's highest peak'

Antarctic mountain heights re-measured. Audio, 00:03:30Antarctic mountain heights re-measured

Where is the most remote place you've been?

Thanksgiving, from the ISS to the South Pole

'Ice Maiden' team aim to break ski record

Antarctic glacier's rough belly exposed

Underside of mighty glacier pictured. Video, 00:00:11Underside of mighty glacier pictured

'There was a polar bear at the window' Video, 00:03:51'There was a polar bear at the window'

'There was a polar bear at the window'

How worried should we be about melting ice caps? Video, 00:02:12How worried should we be about melting ice caps?

Captain Scott 'selfie' sells for £12,500

Antarctica's warm underbelly revealed

Mapping Antarctica's warm underbelly. Audio, 00:06:04Mapping Antarctica's warm underbelly

Antarctic base comes out of deep freeze

The ice ceiling that held women back

Captain Scott 'selfie' up for sale

Saving Antarctica. Newsday. Audio, 00:00:39Saving Antarctica