Footage of the calving of a mega-berg from the Store glacier.
Dr Gabrielle Walker explores the Jostedalsbreen glacier in Norway and explains the different colours of glacier ice.
Footage from inside a glacier moulin, reveals a new system of tunnels.
Dr Gabrielle Walker explores the Jostedalsbreen glacier in Norway and explains how glaciers move.
Dr Helen Czerski explains why icebergs are white.
Dr Helen Czerski discusses the important properties of the sediment contained in icebergs.
Dr Helen Czerski explains how icebergs float and what makes them so dangerous.
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