Terrestrial biomass sinking is a type of biomass carbon removal and storage (BiCRS) that uses photosynthesis to remove CO₂ from the atmosphere, and sinks that biomass to achieve long-term carbon storage. In addition to the carbon removal and durability uncertainties mapped below, there are important uncertainties about the ecosystem impacts of this approach. This pathway is VCL 2-4, meaning that current quantification capacity can establish permanent carbon removal, but for certain approaches, very significant uncertainties remain.