Policy Brief: Addressing differences in permanence of Carbon Dioxide Removal

Adam Whitmore; Mark Preston Aragonès on Bellona.org

This Policy Brief paper explores three broad approaches to recognising and managing permanence in the context of carbon removal certifications. Approach 1 keeps the long and short carbon cycles separate and eliminates the fungibility between the various carbon sinks. Approach 2 adjusts the upfront value of a carbon removal certificate to the estimated risk of reversal. Approach 3 ties a perpetual liability to a CDR certificate, whereby any reversal must be replaced for the certificate to retain its value.