Solar Energy and CO2 Emissions: CCEMG Estimations for 26 Countries
Abstract The impact of renewable energy on environmental sustainability has become much more critical in the era of globalization. Therefore, this study examines the long-run relationships between solar energy consumption, coal energy consumption, financial globalization, economic growth, and CO2 emissions for 26 countries from 2000-2019. We preferred the common correlated effects mean group (CCEMG) method, which considers the cross-section dependence and slope homogeneity observed in the panel. According to CCEMG estimates, solar energy consumption has a negative and significant effect on the level of carbon emissions. Accordingly, a 1% increase in solar energy causes a 0.0106671% reduction in CO2 emissions. On the other hand, a 1% increase in fossil energy consumption causes a rise of 0.2403829% in CO2 emissions. Furthermore, the empirical results of the causality test showed a bidirectional causality between solar energy consumption and CO2 emissions. As a result, this study reveals the importance of solar energy in reducing CO2 emissions.