Polar expedition 2014 with Oden (IMAGE) University of Gothenburg Caption As early as the expedition in 2014 with the icebreaker Oden, the researchers could see that the sea ice coverage was greatly reduced in the Arctic. Credit Jorien Vonk Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.