New insight into decoupling carbon emissions from economic growth: Do financialization, human capital, and energy security risk matter?

Against the backdrop of persistent climate change and deteriorating environmental pressure, this study integrates financialization, human capital, and energy security risks to provide new insight into decoupling carbon emissions from economic growth. The study employs annual panel data on the BRICS (Brazil, Russia, India, China, and South Africa) countries for the period of 1990-2019. The research employs the C-S ARDL approach and the Tapio decoupling index to assess the decoupling status of the BRICS countries. In addition, this study applies the recently developed Juodis, Karavias, and Sarafidis Granger noncausality test for robustness. The findings offer compelling evidence of an inverted U-shaped curve, aligning with the environmental Kuznets curve hypothesis. Consequently, the results confirm the decoupling of carbon emissions in the BRICS nations. Furthermore, the Tapio decoupling elasticity index confirms different carbon decoupling statuses among the BRICS. The results show expansive negative decoupling for Brazil, weak decoupling for India and China, and strong decoupling for Russia and South Africa. In terms of policy, achieving strong decoupling status in the BRICS requires that financial institutions' lending and investing strategies align with environmental objectives. In addition, human capital development policies such as increased spending on education should be vigorously pursued to empower people to lead sustainable development projects.