Horizon: AntarCtica - The Ice Melts (1997)
Since 1978, scientists have been concerned that global warming could lead to the collapse of the west Antarctic ice sheet, flooding large parts of Europe, Asia and America. But, as shown in the last of this special trilogy, nature itself may be as much of a threat to the ice sheet as any human impact.
Duration: 49 minutes
Suggested credit: Horizon: Antarctica - The Ice Melts (1997) © BBC Archive