The sediment on the sea floor is like an archive, it reveals past environmental conditions in the the Arctic history. The researcher Grace Shephard is now on board icebreaker Oden on the Arctic Ocean 2016 expedition, and she explains how they collect samples of sediment to be able to see what the Arctic conditions was millions of years ago and how it has changed until today.

Science team on board:
Carina Johansson, Draupnir Einarsson, Grace Shephard, Luz María Mejía Ramírez, Markus Karasti och Steffen Wiers.