Scaling low-carbon products with book and claim systems

What this episode covers

Adam Klauber, VP of sustainability and digital supply chain at World Energy, explains how book and claim systems decouple environmental attributes from physical goods to bridge the gap between low-carbon producers and global buyers. He contrasts this with mass-balance and physical chain-of-custody models, using examples from sustainable aviation fuel (SAF), maritime, steel, and cement. Klauber highlights the importance of interoperable digital registries, robust certification (such as Roundtable on Sustainable Biomaterials), and long-term forward contracts to ensure additionality and prevent double counting. He argues that book and claim is essential for scaling hard-to-abate sectors, as physical volumes will never meet net-zero demands alone.