{"entity": "publication", "iuid": "cbf0674bfb9641a5b13df8dc2fc4a132", "timestamp": "2026-08-18T23:35:57.217Z", "links": {"self": {"href": "https://publications.scilifelab.se/publication/cbf0674bfb9641a5b13df8dc2fc4a132.json"}, "display": {"href": "https://publications.scilifelab.se/publication/cbf0674bfb9641a5b13df8dc2fc4a132"}}, "title": "Long-term warming raises risks of seasonal seafloor methane release in the coastal Baltic Sea.", "authors": [{"family": "Li", "given": "Songjun", "initials": "S"}, {"family": "Ketzer", "given": "Marcelo", "initials": "M"}, {"family": "Chang", "given": "Cheng", "initials": "C"}, {"family": "Rula", "given": "Iryna", "initials": "I"}, {"family": "Seidel", "given": "Laura", "initials": "L"}, {"family": "Svendsen", "given": "Ida Krogsgaard", "initials": "IK"}, {"family": "Forsman", "given": "Anders", "initials": "A"}, {"family": "Hylander", "given": "Samuel", "initials": "S"}, {"family": "Dopson", "given": "Mark", "initials": "M"}], "type": "journal article", "published": "2025-10-07", "journal": {"title": "Front Microbiol", "issn": "1664-302X", "volume": "16", "pages": "1636301", "issn-l": "1664-302X"}, "abstract": "Climate change driven ocean warming is a worldwide environmental issue that can impact cycling of greenhouse gases. However, how methane production in marine sediments as a potential contributor to atmospheric greenhouse gases versus its consumption at the sulfate-methane transition zone will be affected by climate change related warming is still not well constrained. In this study, sediments from two Baltic Sea bays with long-term temperature differences were collected during summer and winter. The primary difference between the two bays was that one had been heated by a nearby power plant for 50 years, resulting in a 5.1 \u00b0C increase in annual average temperature compared to an unheated control bay. The results showed that near-seafloor sediment methane concentrations were 50 times higher compared to present-day conditions. Furthermore, the sediment fluxes along with microbial community composition changes suggested that long-term warming may thin the sulfate reduction zone, such that methanotrophic archaea and sulfate reducing bacteria peaked at shallower sediment depths in the heated bay. Overall, the results from long-term warming in natural sediment environment indicated that future climate change warming may increase the risk of methane release to the water and eventually the atmosphere.", "doi": "10.3389/fmicb.2025.1636301", "pmid": "41127623", "labels": {"National Genomics Infrastructure": "Service", "NGI Stockholm (Genomics Production)": "Service", "NGI Short read": "Service", "Bioinformatics Support for Computational Resources": "Service"}, "xrefs": [{"db": "pmc", "key": "PMC12537722"}], "notes": [], "created": "2025-11-21T15:33:15.108Z", "modified": "2025-11-28T10:54:29.001Z"}