How is permanence assessed under Riverse Standard?

Permanent carbon removals mean that carbon removal is ensured for the committed-upon duration (at least 100 years for removal RCC). This duration is the commitment period, and represents the number of years for which the Project Developer can prove that carbon will likely remain sequestered.

Carbon removals are not permanent if the carbon is re-emitted (i.e. the removal is reversed) before the commitment period ends, for example through natural disaster (fires, drought, pests) or project mismanagement.

Reversal risks are managed through:

• Contribution to the provision pool: projects eligible for removal RCCs must contribute a default 3% of their verified removal RCCs to the provision pool. This covers a minimum inherent reversal risk of all removal RCCs. More details on the provision pool are available in the Riverse Procedures Manual.
• Risk assessment: projects eligible for removal RCCs must evaluate the risk of reversal during the validation step using the Reversal Risk Evaluation section of Risk Assessment Templates. Details on how to fill in the template, and how to use the results, are in the Risk assessment section below