Rhymes et al. (2026): Harnessing peatland rewetting for effective biochar-based carbon dioxide removal
Jennifer M. Rhymes, Niall P. McNamara, Davey L. Jones, Fabrizio Albanito and Chris D. Evans, IN: Carbon Management, https://doi.org/10.1007/s42773-025-00524-5
Biochar is widely recognised as a carbon dioxide removal (CDR) technology, but its stability depends on feedstock, pyrolysis conditions, and the soil environment. Current CDR schemes prioritise highly stable biochars to ensure long-term permanence, requiring high pyrolysis temperatures that reduce carbon yield and intensify competition for biomass. This perspective explores potential synergies between two distinct CDR approaches, biochar application and peatland rewetting, where rewetted peatlands could enhance biochar permanence by suppressing microbial decomposition, offering a means to improve both carbon retention and resource efficiency.