New Study Reveals How Sea-Ice Microbes Survive Southern Ocean Winter, with Climate Change Implications

A new study published in Nature Communications has revealed significantly higher concentrations of dimethylsulfoniopropionate (DMSP) in Southern Ocean sea-ice during the austral winter, up to 38-fold greater than in the surrounding seawaters. Led by scientists from Stellenbosch University, this finding underscores the critical role of microbial communities in the recycling of sulfur-related compounds, which are important contributors to climate cooling. The research emphasizes the necessity of incorporating these microbial processes into Earth system models for more accurate climate predictions.