Critical mineral supply chains and the economics of energy transition: A carbon decomposition perspective of growth and decoupling

• Examines the decoupling relationship between energy decomposition and environmental quality. • Highlights the global priority of separating economic growth from carbon emissions. • Finds that higher energy decomposition enhances growth–emissions decoupling. • Shows that greater carbon decomposition weakens growth–emissions decoupling. • Demonstrates that reducing energy and carbon intensity fosters sustainable economic decoupling. Critical minerals like copper, lithium, cobalt, nickel, and rare earth elements form the backbone of low-carbon technologies and are central to the success of global energy transitions. Their availability and the security of their supply chains determine the scalability of renewable energy systems, electric vehicles, battery storage, and hydrogen technologies. For member countries of the International Energy Agency (IEA), which plays a pivotal role in global energy markets, ensuring resilient access to these minerals is inseparable from the broader challenge of decoupling economic growth from carbon emissions. This study examines the dynamics of energy and carbon decomposition as mechanisms for decoupling economic growth from energy-related emissions across certain IEA countries between 1995 and 2022. The analysis employs a decomposition framework that incorporates value-added carbon intensity, value-added energy intensity, and CO 2 transport and storage while accounting for the enabling role of critical mineral availability. The results reveal that improvements in energy decomposition significantly strengthen the decoupling of growth from emissions, whereas increases in carbon decomposition weaken it. Similarly, higher value-added energy intensity and carbon intensity are positively associated with decoupling, while expanded CO 2 transport and storage capacity tend to reduce its effectiveness. Notably, integrating into the analysis considerations related to mineral supply demonstrates that stable and diversified access to critical resources magnifies the benefits of energy decomposition while mitigating the risks that are linked to carbon intensity. These findings underscore the dual importance of policy frameworks that advance energy efficiency and decomposition and strategies that secure critical mineral supply chains to ensure clean technologies’ scalability.