On Saturday, 16 August 2025, the Swedish icebreaker Oden reached the North Pole for the eleventh time since its inaugural voyage in 1991.
Mobilisation for the Canada–Sweden Arctic Ocean 2025 expedition is underway in the port of Helsingborg, where the icebreaker Oden is being prepared and outfitted for the expedition.
During this year's Arctic expedition with the icebreaker Oden, the researchers want to document the transition between winter and summer. This goal requires flexible planning and, based on weather forecasts, being able to move Oden to places where warm air enters the Arctic.
The amount of fish in the central Arctic Ocean is very limited. Therefore, the fish stock needs to be protected when the Arctic Ocean becomes increasingly accessible due to melting sea ice. Pauline Leijonmalm, Chief Scientist during the Oden Expedition Synoptic Arctic Survey 2021, can look back on a successful expedition where the researchers could collect valuable data about the ecosystem in the Arctic.
In the oceans, there are viruses that infect bacteria. Even though they have a major impact on our ecosystems, the research in this area is limited, especially from Arctic environments. Researchers who participated in the Synoptic Arctic Survey 2021 expedition are currently studying this. They want to understand how environmental pollution and climate change affect viruses, bacteria, and ecosystems in the future.
To explain the reasons for the rapid warming in the Arctic, measurements of the atmosphere are needed. On the icebreaker Oden, researchers within the ACAS project have developed an atmospheric observatory to be able to study factors such as changes in clouds and the interactions between the surface and the atmosphere.