Nathaniel Solomon Prince, Iheonu Chimere Okechukwu
University of Lagos, Akoka, Nigeria.
University of Nigeria, Nsukka, Nigeria.
Sci Total Environ. 2019 Aug 20;679:337-345. doi: 10.1016/j.scitotenv.2019.05.011. Epub 2019 May 6.
The study explores the importance of renewable and non-renewable energy consumption on CO2 abatement in Africa from 1990 to 2014 with available balanced panel data for selected 19 countries employing the Augmented Mean Group (AMG) estimation technique. The study adopts both first-and-second-generation unit root and cointegration tests. Findings affirm cointegration among the variables. Results from the AMG estimate reveal that while renewable energy inhibits CO2 emissions insignificantly in Africa, non-renewable energy increases CO2 emissions significantly. Country-specific results reveal that the influence of both types of energy sources on CO2 emissions vary in terms of the nature of the relationship, the magnitude of influence and the level of significance. We further observed a one-way causality from renewable & non-renewable energy to CO2 emissions. Based on findings, policies for enhancing growth and curtailing environmental degradation with a view to achieving sustainable development were suggested.
该研究利用19个选定国家1990年至2014年的可用平衡面板数据,采用增强均值组(AMG)估计技术,探讨了可再生能源和不可再生能源消费对非洲二氧化碳减排的重要性。该研究采用了第一代和第二代单位根检验与协整检验。研究结果证实了变量之间的协整关系。AMG估计结果显示,虽然可再生能源对非洲二氧化碳排放的抑制作用不显著,但不可再生能源显著增加了二氧化碳排放。特定国家的结果表明,这两种能源对二氧化碳排放的影响在关系性质、影响程度和显著水平方面存在差异。我们还观察到从可再生能源和不可再生能源到二氧化碳排放的单向因果关系。基于研究结果,提出了促进增长和减少环境退化以实现可持续发展的政策建议。