Huge Arctic Temperature Spike May Be Linked to Europe Cold Snap

Temperatures in the Arctic in recent days have surged above the freezing point, leading to renewed fears that climate change is affecting the planet's atmosphere and causing sea ice to melt at a faster rate than predicted. The Arctic is warming twice as fast as the global average, scientists say, but at the same time much of Europe is experiencing a severe cold spell. Some scientists believe the two events are linked, as Henry Ridgwell reports from London.