The reduction of greenhouse gas emissions is insufficient for reaching the currently set climate goals. 'Real' compensation is needed in the form of active greenhouse gas removal, yet most negative emission technologies are limited by cost, TRL, scalability, ecological risk or societal resistance. We explore carbon-cycle based mechanistic solutions, such as the inertinization of biomass-carbon and waste-carbon in order to extend the residence time of these CO₂-sinks and evaluating environmental aspects of long-term storage.