Nature, Published online: 04 June 2025; doi:10.1038/s41586-025-09067-yAcetic acid efficiently depolymerizes aliphatic and aromatic epoxy-amine thermosets used in carbon fibre-reinforced polymersto yield recoverable monomers and pristine carbon fibres, which, based on process modelling, techno-economic analysis and life cycle assessment, could enable industrial recycling of CFRPs. #acetolysis #epoxyamine #carbon #fibrereinforced #polymer