The group of Organic Geochemistry conducted research on polar climate records and the organic carbon cycle in estuaries.

The researches focus on 25 fjords around the world to examine the stability of sedimentary organic carbon and the factors of the activity of sedimentary organic carbon by the pyrolysis/oxidation 14C analysis technique. They investigated the controlling factors of sedimentary organic carbon activity in fjords and proposed a negative feedback mechanism of fjords in response to climate change.

Study the sediment core from the Colville River in northern Alaska and analyze the radiocarbon ages of bulk organic carbon and long-chain fatty acids in the sediments and reconstructed the permafrost carbon deposition record over the past 2000 years. they demonstrated the correlation between Arctic warming and the depth of permafrost melting and the output of permafrost organic carbon.