School of Management and Economics, Beijing Institute of Technology, Beijing, 100081, China.
Center for Energy and Environmental Policy, School of Management and Economics Beijing Institute of Technology, Beijing, 100081, China.
Environ Sci Pollut Res Int. 2019 Jun;26(16):16695-16707. doi: 10.1007/s11356-019-05042-z. Epub 2019 Apr 16.
To effectively combat global warming, an enormous reduction in CO emissions is required. Cameroon, which is currently the largest emitter of CO in the CEMAC subregion, has committed to reducing its greenhouse gas emissions by 32% by 2035. However, previous studies in Cameroon have only addressed the relationship between economic growth, energy consumption, and CO emissions without estimating all causal relationships at the same time. Moreover, no study has yet decomposed this country's CO emissions to date. To fill these research gaps and further assess the determinants of these CO emissions, an extended Kaya identity and the Logarithm Mean Divisia Index (LMDI I) have been applied in this paper to identify, quantify, and explain the main drivers of Cameroon's CO emissions from 2007 to 2014. Seven effects were measured and the main findings show that carbon intensity and the emission factor increased by 0.57% and 107.50% respectively. Regarding contributions to the increase of CO emissions, the population effect was the most positive followed by the activity effect, whereas the energy intensity, the substitution of fossil fuels and the penetration of renewable energies have contributed to reduce the CO emission. To enable Cameroon to not only achieve the goals of its vision but also develop a low-carbon economy, this paper provides some proposed avenues that should be considered by policymakers.
为了有效应对全球变暖，需要大幅减少 CO 排放。喀麦隆目前是中非经货共同体次区域 CO 排放量最大的国家，已承诺到 2035 年将温室气体排放量减少 32%。然而，喀麦隆之前的研究仅探讨了经济增长、能源消耗与 CO 排放之间的关系，没有同时估计所有因果关系。此外，迄今尚无研究对该国的 CO 排放进行分解。为了填补这些研究空白并进一步评估这些 CO 排放的决定因素，本文应用扩展的 Kaya 恒等式和对数平均迪氏指数（LMDI I）来识别、量化和解释 2007 年至 2014 年喀麦隆 CO 排放的主要驱动因素。测量了七个效应，主要发现表明碳强度和排放系数分别增加了 0.57%和 107.50%。关于 CO 排放增加的贡献，人口效应最为积极，其次是活动效应，而能源强度、化石燃料替代和可再生能源的渗透则有助于减少 CO 排放。为了使喀麦隆不仅实现其愿景目标，还发展低碳经济，本文为决策者提供了一些应考虑的建议途径。
