Whether the credit removes carbon dioxide from the atmosphere (removal through implementing activities such as cover cropping) or reduces the amount of carbon dioxide going into the atmosphere (reductions i.e. through using less tractor fuel) determines the value, where removal credits are higher value, although both can meet the high quality threshold by following highly regarded methodologies.
Additionality and durability are the most common considerations when assessing the value of removal credits. Other considerations include carbon accounting methods, harms and benefits, leakage, MRV.
Additionality: the total amount of additional carbon removed vs the baseline scenario
Durability: how long the carbon can be stored for
Harms and benefits: social and environmental impacts of the projects. – projects that support the local community, improve biodiversity etc are of higher value
Leakage: doesn’t shift the burden of the emissions elsewhere – i.e. does not impact yields, does not lead to an increase in emissions, cost of produce etc elsewhere