Nature – Dale et al. (2024): Seafloor alkalinity enhancement as a carbon dioxide removal strategy in the Baltic Sea

Andrew W. Dale, Sonja Geilert, Isabel Diercks, Michael Fuhr, Mirjam Perner, Florian Scholz, Klaus Wallmann IN: Communications Earth & Environment, 5, https://doi.org/10.1038/s43247-024-01569-3

Ocean alkalinity enhancement by the artificial addition of carbonate minerals to the seafloor has been proposed as a method to sequester atmospheric CO₂ and store it in the ocean as dissolved bicarbonate. Here, a reaction-transport model is used to scrutinize the efficacy of calcite addition and dissolution at a well-studied site in the southwestern Baltic Sea – a brackish coastal water body in northern Europe.

LINK