Long-run and short-run determinants of CO₂ emissions in African countries: Roles of globalization, renewable energy, and growth
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DOIhttp://dx.doi.org/10.21511/ee.17(1).2026.05
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Article InfoVolume 17 2026, Issue #1, pp. 53-63
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Type of the article: Research Article
Abstract
This study investigates the long-run and short-run determinants of CO₂ emissions in African countries, with a particular focus on the roles of globalization, renewable energy consumption, and economic growth for 24 African countries over 1990–2021. Using a panel ARDL framework with PMG, MG, and DFE estimators, we estimate both short-run and long-run relationships and conduct co-integration, cross-section dependence, and robustness checks. The PMG long-run estimates confirm an Environmental Kuznets Curve: GDP has a positive long-run elasticity of 0.237 with CO₂ (p < 0.01), while its square indicates a turning point; renewable energy reduces emissions (long-run elasticity −0.158, p < 0.01); globalization (KOF index) is associated with higher emissions (elasticity 0.350, p < 0.01). Non-renewable energy results are sensitive to estimator choice. Error-correction terms are negative and significant, indicating adjustment to the long-run equilibrium. Results are robust to alternative specifications and subsamples. Policy implications include accelerating renewable deployment and adopting trade and investment policies that favor cleaner technologies to align growth with climate objectives.
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JEL Classification (Paper profile tab)C23, Q43, O13, Q25
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References60
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Tables7
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Figures0
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- Table 1. Summary statistics
- Table 2. Pesaran CD test for cross-sectional dependence
- Table 3. Panel unit root tests (CIPS)
- Table 4. Cointegration tests (Pedroni, PDOLS, Westerlund)
- Table 5. Hausman test
- Table 6. Long-run PMG, MG, and DFE estimates
- Table 7. Short-run PMG, MG, and DFE estimates
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- Ajmi, A. N., Hammoudeh, S., Nguyen, D. K., & Sato, J. R. (2015). On the relationships between CO2 emissions, energy consumption and income: The importance of time variation. Energy Economics, 49, 629-638.
- Ang, J. B. (2007). CO2 emissions, energy consumption, and output in France. Energy Policy, 35(10), 4772-4778.
- Antweiler, W., Copeland, B. R., & Taylor, M. S. (2001). Is free trade good for the environment? American Economic Review, 91(4), 877-908.
- Anwar, A., Siddique, M., Dogan, E., & Sharif, A. (2021). The moderating role of renewable and non-renewable energy in environment-income nexus for ASEAN countries: Evidence from Method of Moments Quantile Regression. Renewable Energy, 164, 956-967.
- Apergis, N., & Payne, J. E. (2010). Renewable energy consumption and economic growth: evidence from a panel of OECD countries. Energy Policy, 38(1), 656-660.
- Apergis, N., Bhattacharya, M., & Hadhri, W. (2020). Health care expenditure and environmental pollution: a cross-country comparison across different income groups. Environmental Science and Pollution Research, 27(8), 8142-8156.
- Arrow, K., Bolin, B., Costanza, R., Dasgupta, P., Folke, C., Holling, C. S., Jansson, B.-O. Levin, S., Mäler, K.-G., Perrings, C., & Pimentel, D. (1995). Economic growth, carrying capacity, and the environment. Ecological Economics, 15(2), 91-95.
- Baek, J. (2016). A new look at the FDI-income-energy-environment nexus: Dynamic panel data analysis of ASEAN. Energy Policy, 91, 22-27.
- Bekun, F. V., Alola, A. A., Gyamfi, B. A., & Ampomah, A. B. (2021). The environmental aspects of conventional and clean energy policy in Sub-Saharan Africa: Is N-shaped hypothesis valid? Environmental Science and Pollution Research, 28(47), 66695-66708.
- Bello, S., & Hassan, Y. A. (2024). Examining the effect of geopolitical risks on renewable energy consumption in OECD countries. Environmental Economics, 15(2), 108-117.
- Ben Jebli, M., & Ben Youssef, S. (2015). The environmental Kuznets curve, economic growth, renewable and non-renewable energy, and trade in Tunisia. Renewable and Sustainable Energy Reviews, 47(C), 173-185.
- Ben Jebli, M., & Hadhri, W. (2018). The dynamic causal links between CO2 emissions from transport, real GDP, energy use and international tourism. International Journal of Sustainable Development & World Ecology, 25(6), 568-577.
- Ben Youssef, A., Boubaker, S., & Omri, A. (2020). Financial development and macroeconomic sustainability: Modeling based on a modified environmental Kuznets curve. Climatic Change, 163(2), 767-785.
- Bhattacharya, M., Paramati, S. R., Ozturk, I., & Bhattacharya, S. (2016). The effect of renewable energy consumption on economic growth: Evidence from top 38 countries. Applied Energy, 162, 733-741.
- Çetin, M., Sarıgül, S. S., Topcu, B. A., Alvarado, & Karataser, B. (2023). Does globalization mitigate environmental degradation in selected emerging economies? Assessment of the role of financial development, economic growth, renewable energy consumption and urbanization. Environmental Science and Pollution Research, 30, 100340-100359.
- Cole, M. (2004). Trade, the pollution haven hypothesis and the environmental Kuznets curve: Examining the linkages. Ecological Economics, 48(1), 71-81.
- Copeland, B. R., & Taylor, M. S. (1994). North-South trade and the environment. The Quarterly Journal of Economics, 109(3), 755-787.
- Dada, J. T., Ajide, F. M., Arnaut, M., & Adeiza, A. (2023). On the shadow economy-environmental sustainability nexus in Africa: The (ir)relevance of financial development. The International Journal of Sustainable Development and World Ecology, 30(1), 6-20.
- Dallali, A., Ben Jebli, M., & Gam, I. (2025). The influence of industrial expansion on carbon dioxide emissions in China: The interplay of financial development and renewable energy. Environmental Progress & Sustainable Energy, 44(3), Article e14560.
- Destek, M. A., & Aslan, A. (2017). Renewable and non-renewable energy consumption and economic growth in emerging economies: Evidence from bootstrap panel causality. Renewable Energy, 111, 757-763.
- Dogan, E., & Seker, F. (2016). The influence of real output, renewable and non-renewable energy, trade and financial development on carbon emissions in the top renewable energy countries. Renewable and Sustainable Energy Reviews, 60, 1074-1085.
- Grossman, G. M., & Krueger, A. B. (1991). Environmental impacts of a North American free trade agreement (Working Paper No. 3914). Cambridge: National Bureau of Economic Research.
- Grossman, G. M., & Krueger, A. B. (1995). Economic growth and the environment. The Quarterly Journal of Economics, 110(2), 353-377.
- Gygli, S., Haelg, F., Potrafke, N., & Sturm, J.-E. (2019). The KOF Globalisation Index – Revisited. Review of International Organizations, 14(3), 543-574.
- Hadhri, W. (2025, October 28). Does globalization matter for environmental sustainability? Evidence from the renewable energy-growth-CO2 nexus in African countries (1990–2021) [Data set]. Zenodo.
- Halicioglu, F. (2009). An econometric study of CO2 emissions, energy consumption, income and foreign trade in Turkey. Energy Policy, 37(3), 1156-1164.
- Haseeb, M., Abidin, I. S. Z., Hye, Q. M A., & Hartani, N. H. (2018). The impact of renewable energy on economic well-being of Malaysia: Fresh evidence from auto regressive distributed lag bound testing approach. International Journal of Energy Economics and Policy, 9(1), 269-275.
- He, J., & Richard, P. (2010). Environmental Kuznets curve for CO2 in Canada. Ecological Economics, 69(5), 1083-1093.
- Huang, Y., Kuldasheva, Z., & Salahodjaev, R. (2021). Renewable energy and CO₂ emissions: Empirical evidence from major energy-consuming countries. Energies, 14(22), Article 7504.
- Ibrahim, B. I., Amin, H. A., & Abdelet, A. (2024). Organizational culture and its role in supporting digital transformation in university institutions: An exploratory study of the opinions of a sample of teachers at Tal Afar University. Educational Administration: Theory and Practice, 30(5), 466-475.
- Im, K. S., Pesaran, M. H., & Shin, Y. (2003). Testing for unit roots in heterogeneous panels. Journal of Econometrics, 115(1), 53-74.
- Keho, Y. (2023). Does globalization cause environmental degradation in developing economies? Evidence from Cote d’Ivoire using ecological footprint. International Journal of Energy Economics and Policy, 13(4), 455-466.
- Kraft, J., & Kraft, A. (1978). On the relationship between energy and GNP. Journal of Energy and Development, 3(2), 401-403.
- Le, T.-H., Chang, Y., & Park, D. (2016). Trade openness and environmental quality: International evidence. Energy Policy, 92, 5-55.
- Mahmood, H., & Furqan, M. (2025). Renewable energy transition, urbanization, and environment nexus in the Middle East and North Africa: Cross sectional dependence analyses. Environmental Economics, 16(1), 89-101.
- Menegaki, A. N., & Tugcu, C. T. (2017). Energy consumption and sustainable economic welfare in G7 countries; A comparison with the conventional nexus. Renewable and Sustainable Energy Reviews, 69, 892-901.
- Muazu, A., Yu, Q., & Liu, Q (2023). Does renewable energy consumption promote economic growth? An empirical analysis of panel threshold based on 54 African countries. International Journal of Energy Sector Management, 17(1), 106-127.
- Pedroni, P. (1999). Critical values for cointegration tests in heterogeneous panels with multiple regressors. Oxford Bulletin of Economics and Statistics, 61(S1), 653-670.
- Pesaran, M. H. (2004). General diagnostic tests for cross section dependence in panels (Cambridge Working Papers in Economics 0435). University of Cambridge.
- Pesaran, M. H. (2007). A simple panel unit root test in the presence of cross-section dependence. Journal of Applied Econometrics, 22(2), 265-312.
- Pesaran, M. H., Shin, Y., & Smith, R. P. (1999). Pooled mean group estimation of dynamic heterogeneous panels. Journal of the American Statistical Association, 94(446), 621-634.
- Pesaran, M. H., Shin, Y., & Smith, R. P. (2001). Bounds testing approaches to the analysis of level relationships. Journal of Applied Econometrics, 16(3), 289-326.
- Phiri, A., Mhaka, S., & Taonezvi, L. (2024). Too poor to be clean? A quantile ARDL assessment of the environmental Kuznets curve in SADC countries. Environment, Development and Sustainability, 26, 27301-27323.
- Prempeh, K. B. (2024). The role of economic growth, financial development, globalization, renewable energy and industrialization in reducing environmental degradation in the economic community of West African States. Cogent Economics & Finance, 12(1).
- Saboori, B., Sulaiman, J., & Mohd, S (2016). Environmental Kuznets curve and energy consumption in Malaysia: A cointegration approach. Energy Sources, Part B: Economics, Planning, and Policy, 11(9), 861-867.
- Saboori, B., Sulaiman, J., & Mohd, S. (2012). Economic growth and CO2 emissions in Malaysia: A cointegration analysis of the Environmental Kuznets Curve. Energy Policy, 51, 184-191.
- Sadorsky, P. (2009). Renewable energy consumption, CO₂ emissions and oil prices in the G7 countries. Energy Policy, 31(3), 456-462.
- Saidi, K., & Hammami, S. (2015). The impact of CO2 emissions and economic growth on energy consumption in 58 countries. Energy Reports, 1, 62-70.
- Sebri, M. (2015). Use renewables to be cleaner: Meta-analysis of the renewable energy consumption-economic growth nexus. Renewable and Sustainable Energy Reviews, 42, 657-665.
- Shafik, N. (1994). Economic development and environmental quality: An econometric analysis. Oxford Economic Papers, 46(suppl_1), 757-773.
- Shahbaz, M., Loganathan, N., Zeshan, M., & Zaman, K. (2015). Does renewable energy consumption add in economic growth? An application of auto-regressive distributed lag model in Pakistan. Renewable and Sustainable Energy Reviews, 44, 576-585.
- Shahbaz, M., Shahzad, S. J. H, Mahalik, M. K., & Hammoudeh, S. (2018). Does globalization worsen environmental quality in developed economies? Environmental Modeling & Assessment, 23, 141-156.
- Stern, D. I. (2004). The rise and fall of the environmental Kuznets curve. World Development, 32(8), 1419-1439.
- Stern, D. I. (2017). The environmental Kuznets curve after 25 years. Journal of Bioeconomics, 19(1), 7-28.
- Teklie, D.K., & Yağmur, M. H. (2024). Effect of economic growth on CO₂ emission in Africa: Do financial development and globalization matter? International Journal of Energy Economics and Policy, 14(1), 121-140.
- UNEP. (2011). Environmental Assessment of Ogoniland (262 p.). Nairobi: United Nations Environmental Programme.
- Wang, J., Shan, Y., Cui, C., Zhao, C., Meng, J., & Wang, S. (2024). Investigating the fast energy-related carbon emissions growth in African countries and its drivers. Applied Energy, 357, Article 122494.
- Westerlund, J. (2008). Panel cointegration tests of the Fisher effect. Journal of Applied Econometrics, 23(2), 193-233.
- World Bank. (2023). World Development Indicators. The World Bank Group.
- Zaidi, S. A. H., Danish, H. F., & Mirza, F. M. (2018). The role of renewable and non-renewable energy consumption in CO2 emissions: a disaggregate analysis of Pakistan. Environmental Science and Pollution Research, 25, 31616-31629.


