During the past decades the temperature has increased significantly in the Arctic. This has reduced the extent of the sea ice cover by approximately 29% since 1980. Greenhouse gases (e.g. CO2 and N2O) are known to affect the climate and these gasses have therefore received a lot of attention. Sea ice has turned out to be relevant for especially atmospheric CO2 concentration, as it has been shown to function as a pump for CO2 into the water. However, we still have limited basic understanding on gas dynamics in ice – dynamics governed by physical, chemical and biological processes - and more investigations are needed to understand the role of sea ice for global greenhouse gas (GHG) dynamics.

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