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• A methodological framework is proposed to analyze carbon inequality across BRI countries and regions. • The most severe bilateral trade carbon inequality existed between China and BRI West Asia. • Most of BRI countries and regions were negatively affected by global trade carbon inequality. The Belt and Road Initiative (BRI) has boosted global trade and economic development. Carbon inequality embodied in global trade may occur across BRI countries and regions in the world. How to quantify this inequality is the key to achieving the green development of the Belt and Road. In this study, we constructed a methodological framework to analyze carbon inequality across BRI countries and regions under the global trade network. Results showed that nearly half of BRI countries and regions exported net embodied carbon emissions while obtaining net economic benefits. The most severe bilateral trade carbon inequality existed between China and BRI West Asia, whose bilateral trade carbon inequality index (BCI) reached 2.76. Except for Indonesia, Saudi Arabia, and BRI West Asia, BRI countries and regions were negatively affected by global trade carbon inequality, with China and India suffering the most, whose global trade carbon inequality indices (GCI) were -2.06 and -1.26, respectively. This methodological framework can be applied to analyze the inequality of other kinds of ecological impacts embodied in trade on any scale. Furthermore, this study can provide policy implications for the green development of the Belt and Road. [ABSTRACT FROM AUTHOR]

Increasing economic and population growth has put immense pressure on energy, water and land resources to satisfy national and supra-national demand. Through trade, a large proportion of such a demand is fulfilled. With trade as one of its key priorities, the China Belt and Road Initiative is a long-term transcontinental investment program. The initiative gained significant attention due to greater opportunities for economic development, large population and different levels of resource availability. The nexus approach has appeared as a new viewpoint in discussions on balancing the competing sectoral demands. However, following years of work, constraints exist in the scope and focus of studies. The newly developed multi-regional input–output (MRIO) models covering the world's economy and its use of resources permit a comprehensive analysis of resource usage by production and consumption at different levels, and bring more knowledge about resource nexus problems. Using the MRIO model, this work simultaneously tracks energy, water and land use flows and investigates the transnational resource nexus. A nexus strength indicator is proposed which depends on ternary diagrams to grade countries based on their combined resources' use and sectoral weighting. Equal sectoral weighting is assigned. The analysis presented a sectorally balanced nexus approach. Findings support existing work by recognizing energy, water and land as the robust transnational connections, from both production and consumption points of view. Resource nexus issues differ from country to country owing to inequalities in industrial set-up, preferences in economic policy and resource endowments. The paper outlines how key resource nexus problems can be identified and prioritized in view of alternative and often opposing interests. [ABSTRACT FROM AUTHOR]