The area of ice covering the Arctic ocean has been in a state of long decline, as climate change takes effect. But recent fluctuations in the ice have been seized on by climate change sceptics, who say it tells a different story.
We speak to polar climate scientist Professor Julienne Stroeve to better understand how to read the ice data.
Presenter / producer: Tom Colls
Production co-ordinator: Brenda Brown
Sound mix: Neil Churchill
Editor: Richard Vadon
