Nature Geoscience, Published online: 31 July 2026; doi:10.1038/s41561-026-02060-8

Only 10% of organic carbon from thawing Pleistocene permafrost in the Arctic that is buried in marine sediments ends up re-entering the active carbon cycle, according to a carbon isotope analysis of sediments from off Qikiqtaruk (Herschel Island) in Canada.

Nature, Published online: 15 July 2026; doi:10.1038/s41586-026-10786-z

Chimeric antigen receptor (CAR) T cells for antitumour therapy ‘armoured’ with a dominant-negative TGFβ receptor II show enhanced efficacy and tolerable safety in patients with advanced hepatocellular carcinoma who have developed resistance or not responded to previous treatment.