Bijma et al. (2026): Reviews and syntheses: Carbon vs. cation based MRV of Enhanced Rock Weathering and the issue of soil organic carbon
Jelle Bijma, Mathilde Hagens, Jens S. Hammes, Noah Planavsky, Philip A. E. Pogge von Strandmann, Tom Reershemius, Christopher T. Reinhard, Phil Renforth, Tim J. Suhrhoff, Sara Vicca, Arthur Vienne and Dieter Wolf-Gladrow, IN: Biogeosciences, https://doi.org/10.5194/bg-23-53-2026
They discuss the “monitoring, reporting and verification” (MRV) strategy of Enhanced Weathering (EW) based on carbon accounting and argue that in open systems such as arable land, this approach is ill-suited to close the balance of all carbon fluxes. They argue for total alkalinity (TA) as the central parameter for the carbon based MRV of EW. However, they also stress that tracking alkalinity fluxes using a systems-level approach is best done by focusing on charge balance maintenance through time.