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CDR Verification Framework Documentation
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Air-sea gas exchange
Avoided non-CO₂ biomass emissions
Base dispersal into ocean
Baseline weathering rate
Biochar applied
Biochar degradation
Biochar storage
Biomass burial
Biomass procurement
Biomass sinking
Biomass transformation
Biomaterial injection
Biotic calcification response
Carbon storage counterfactual
Carbonate weathering
Carbonates
Change in agricultural lime use
Change in agricultural yields
Change in fertilizer use
CO₂ capture
CO₂ storage
Deepwater recirculation
DIC residence time
Dissolved phase deepwater storage
Energy
Energy co-products
Feedstock use counterfactual
Leakage (biomass storage)
Leakage (carbonate degradation)
Leakage (CO₂ storage)
Leakage (evasion)
Leakage (geologic biomaterial)
Leakage (non-sunk fraction)
Long-term fate of acid
Macroalgae cultivation on drifting buoy
Macroalgae harvest
Marine carbonate durability
Marine carbonate precipitation
Market effects
Materials
Mineral application (potential atmospheric removal)
Mineral dispersal into ocean
Mineral dissolution (alkalinity release)
Mineral weathering (alkalinity release)
Non-carbonate weathering products
Non-carbonic acid neutralization
Non-CO₂ biomass emissions
Outgassing
Particulate organic carbon response
Reduction in N₂O emissions
Secondary impacts of energy demand
Secondary mineral formation
Secondary precipitation
Soil carbon impacts
Solid phase deepwater storage
Storage (carbonates)
Storage monitoring and maintenance (biomass burial)
Storage monitoring and maintenance (geologic storage)
Surface competition effects
Terrestrial carbonate durability
Terrestrial carbonate precipitation
Utilization
Macroalgae harvest
Uncertainty
The potential impact of the uncertainty on final estimates of net carbon removal or storage duration: negligible, low, medium, high, or very high.
The mass of harvested kelp can be measured directly before sinking, and converted to carbon using a default carbon content factor.
Applicable pathways
Pathway
VCL
Ocean Biomass Sinking (Harvest)
3
Revision history
Sep 20 2022
Fixed typo.
Sep 19 2022
First release.
Air-sea gas exchange
Avoided non-CO₂ biomass emissions
Base dispersal into ocean
Baseline weathering rate
Biochar applied
Biochar degradation
Biochar storage
Biomass burial
Biomass procurement
Biomass sinking
Biomass transformation
Biomaterial injection
Biotic calcification response
Carbon storage counterfactual
Carbonate weathering
Carbonates
Change in agricultural lime use
Change in agricultural yields
Change in fertilizer use
CO₂ capture
CO₂ storage
Deepwater recirculation
DIC residence time
Dissolved phase deepwater storage
Energy
Energy co-products
Feedstock use counterfactual
Leakage (biomass storage)
Leakage (carbonate degradation)
Leakage (CO₂ storage)
Leakage (evasion)
Leakage (geologic biomaterial)
Leakage (non-sunk fraction)
Long-term fate of acid
Macroalgae cultivation on drifting buoy
Macroalgae harvest
Marine carbonate durability
Marine carbonate precipitation
Market effects
Materials
Mineral application (potential atmospheric removal)
Mineral dispersal into ocean
Mineral dissolution (alkalinity release)
Mineral weathering (alkalinity release)
Non-carbonate weathering products
Non-carbonic acid neutralization
Non-CO₂ biomass emissions
Outgassing
Particulate organic carbon response
Reduction in N₂O emissions
Secondary impacts of energy demand
Secondary mineral formation
Secondary precipitation
Soil carbon impacts
Solid phase deepwater storage
Storage (carbonates)
Storage monitoring and maintenance (biomass burial)
Storage monitoring and maintenance (geologic storage)
Surface competition effects
Terrestrial carbonate durability
Terrestrial carbonate precipitation
Utilization
Macroalgae harvest
Uncertainty
The potential impact of the uncertainty on final estimates of net carbon removal or storage duration: negligible, low, medium, high, or very high.
The mass of harvested kelp can be measured directly before sinking, and converted to carbon using a default carbon content factor.
Applicable pathways
Pathway
VCL
Ocean Biomass Sinking (Harvest)
3
Revision history
Sep 20 2022
Fixed typo.
Sep 19 2022
First release.