Department of Economics, Nnamdi Azikiwe University, Awka, Nigeria.
Strategy, Execution and Evaluation (SEE) Office, Awka, Nigeria.
Environ Sci Pollut Res Int. 2023 Sep;30(41):94960-94975. doi: 10.1007/s11356-023-29058-8. Epub 2023 Aug 5.
The combination of rising debt levels, poor electricity access, and environmental deterioration could threaten the attainment of the sustainable development goals (SDGs). Hence, this inquiry examined the implications of public borrowing and access to electricity on environmental sustainability (proxied by ecological footprint (ECOL) and carbon dioxide (CO) emissions) in Sub-Saharan Africa (SSA), largely overlooked in the literature. In addition to pre-estimation, diagnostic, and robustness checks utilized in the study, the instrumental variable generalized method of moment (IV-GMM) approach is employed to examine annual data from 39 SSA economies between 2005 and 2018. The key findings indicate that public debt negatively influences environmental sustainability in the region at a certain level of threshold, while access to electricity has the potential to trigger environmental sustainability but remain below the expected threshold to mitigate environmental damage in SSA. The study provides recommendations for SSA policymakers to significantly reduce pollution and protect the environment which is vital for sustainable development.
债务水平上升、电力供应不足和环境恶化相结合,可能威胁到可持续发展目标(SDGs)的实现。因此,本研究探讨了公共借款和电力供应对撒哈拉以南非洲(SSA)环境可持续性(以生态足迹(ECOL)和二氧化碳(CO)排放来衡量)的影响,这在文献中很大程度上被忽视了。除了研究中使用的预估计、诊断和稳健性检验外,本研究还采用工具变量广义矩方法(IV-GMM)来考察 2005 年至 2018 年期间来自 39 个 SSA 经济体的年度数据。研究结果表明,在一定的门槛水平上,公共债务对该地区的环境可持续性产生负面影响,而电力供应有可能引发环境可持续性,但仍低于预期的门槛,无法减轻 SSA 的环境破坏。本研究为 SSA 政策制定者提供了建议,以显著减少污染并保护环境,这对可持续发展至关重要。