Gholamahmadi & Kammann (2026): Biochar for durable carbon removal: soil erosion reduction as a key mechanism
Behrouz Gholamahmadi and Claudia Kammann, IN: Biochar, https://doi.org/10.1016/j.bmf.2026.100020
Soil erosion is a major pathway of physical soil organic carbon (SOC) loss and a critical threat to the permanence of land-based carbon dioxide removal (CDR). Biochar is widely recognised as a durable carbon sink, yet its hydrological effects and erosion-mitigation potential remain undervalued in CDR frameworks. Here the authors synthesise global evidence and long-term Mediterranean experiments to show that hydrological improvements—an enhanced soil sponge function—are not ancillary co-benefits but a core mechanism supporting carbon durability.