Department of Economics, Faculty of Business and Economics, Eastern Mediterranean University, Famagusta, North Cyprus, via Mersin 10, Turkey.
Department of Economics, Faculty of Business and Economics, Eastern Mediterranean University, Famagusta, North Cyprus, via Mersin 10, Turkey; School of Business Education, Federal College of Education (Technical), Potiskum, Yobe State, Nigeria.
Sci Total Environ. 2020 Jun 15;721:137813. doi: 10.1016/j.scitotenv.2020.137813. Epub 2020 Mar 9.
Renewable energy plays a vital role in achieving environmental sustainability, however, the mitigating effect varies across countries depending on the share of renewables in the energy mix. Herein, we analyze the effect of renewable energy consumption, energy prices, and trade on emissions in G-7 countries. The results demonstrate that renewable energy and energy prices exert negative pressure on CO emissions while trade volume exerts a robust positive pressure on CO emissions. The country-specific estimation results provide evidence of a negative effect of energy prices on CO emissions. While the environmental Kuznets curve hypothesis is validated at the panel and country-specific levels, the effect of renewable energy consumption and trade, are disparate across countries. The panel Granger causality shows a mono-directional causality flowing from energy prices, GDP, the quadratic term of GDP and trade to CO emissions. Renewable energy consumption, however, has no causal relationship with CO emissions but indirectly affects CO emissions through its direct effect on energy prices. Joint action on trade, energy prices, and country-specific renewable energy policies have implications for environmental sustainability and the attainment of the Sustainable Development Goals (SDGs).
可再生能源在实现环境可持续性方面发挥着至关重要的作用，然而，由于各国在能源结构中可再生能源的份额不同，其缓解效应也有所不同。在此，我们分析了可再生能源消费、能源价格和贸易对七国集团国家排放的影响。结果表明，可再生能源和能源价格对 CO 排放施加了负向压力，而贸易量对 CO 排放施加了强大的正向压力。具体国家的估计结果提供了能源价格对 CO 排放产生负面影响的证据。虽然环境库兹涅茨曲线假说在面板和具体国家层面得到了验证，但可再生能源消费和贸易的影响在各国之间存在差异。面板格兰杰因果关系表明，从能源价格、GDP、GDP 的二次项和贸易到 CO 排放，存在着从能源价格、GDP、GDP 的二次项和贸易到 CO 排放的单向因果关系。然而，可再生能源消费与 CO 排放之间没有因果关系，但通过对能源价格的直接影响间接影响 CO 排放。关于贸易、能源价格和具体国家可再生能源政策的联合行动对环境可持续性和实现可持续发展目标（SDGs）具有重要意义。
