Green Finance, Renewable Energy and Global Warming Relationship: Evidence From G20 Countries

Emine Polat; Erkan Alsu

Green Finance, Renewable Energy and Global Warming Relationship: Evidence From G20 Countries

Abstract

This study examines the relationship between green finance, renewable energy, and global warming. In this context, countries' carbon emission levels were selected as global warming indicators. The study included gross national product, renewable energy consumption, green investment level, and energy consumption as independent variables in the model. Using a panel data set covering the period 2009–2023, long-term relationships were analyzed using Panel FMOLS (Fully Modified Ordinary Least Squares) and Panel DOLS (Dynamic Ordinary Least Squares) techniques. The study found significant relationships among carbon emissions and green finance, energy consumption, renewable energy use, and gross national product. This study offers important policy recommendations for policymakers and stakeholders working in the field of environmental sustainability to combat climate change.

Keywords

Ethical Statement

During the writing process of the study “Green Fınance, Renewable Energy and Global Warmıng Relatıonshıp: Evıdence From G20 Countrıes ” scientific rules, ethical and citation rules were followed. No falsification was made on the collected data and this study was not sent to any other academic publication medium for evaluation.

References

Acca. (2024). What is green finance / Advantages of green finance. ACCA Global. https://www.accaglobal.com
Akın, F. N. (2021, 2 Kasım). Küresel iklim değişikliği hakkında en çok merak edilenler. Bilim Teknik TÜBİTAK. https://bilimteknik.tubitak.gov.tr/makale/kuresel-iklim-degisikligi
Alanlar, F. (2018). Yeniden düşünmek: Yeşil bankacılık modeli içinde Bangladeş örneği. The Günlük, 52(2), 197– 214.
Attanayake, A. M. W. K. L., Jayasinghe, S. D., & Rathnayake, R. M. U. S. (2024). Renewable energy as a solution to climate change. Environmental Challenges, 12, 100948. https://doi.org/10.1016/j.envc.2023.100948
Baltagi, B. H. (2008). Econometric analysis of panel data (4th ed.). John Wiley & Sons.
Charfeddine, L., & Kahia, M. (2019). Impact of renewable energy consumption and financial development on CO₂ emissions and economic growth in the MENA region: A panel vector autoregressive (PVAR) analysis. Renewable Energy, 139, 198–213. https://doi.org/10.1016/j.renene.2019.01.010
Chen, C., Dietz, T., Fefferman, N. H., Greig, J., Cetin, K., Robinson, C., … Fu, R. (2022). Mikro ve makro düzeylerde aşırı olaylar, enerji güvenliği ve eşitlik: Kavramlar, zorluklar ve yöntemler. https://doi.org/10.1016/j.erss.2021.102401
Doğanay, H., & Coşkun, O. (2020). Enerji kaynakları. Pegem Akademi Yayıncılık.

Dong, C., Wu, H., Zhou, J., Lin, H., & Chang, L. (2023). Role of renewable energy investment and geopolitical risk in green finance development: Empirical evidence from BRICS countries. Renewable Energy, 207, 234–241. https://doi.org/10.1016/j.renene.2023.02.115
Enders, W. (2015). Applied econometric time series (4th ed.). Wiley.
Gujarati, D. N. (2003). Basic econometrics (4th ed.). McGraw-Hill.
Harichandan, S., Kar, S. K., Bansal, R., Mishra, S. K., Balathanigaimani, M. S., & Dash, M. (2022). Enerji geçiş araştırması: Mevcut bulguların bibliyometrik haritalanması ve gelecekteki araştırmalar için yön. Clean Production Letters, 3, 100026.
Hekimoğlu, B., & Altındeğer, M. (2008). Küresel ısınma ve iklim değişikliği. Samsun İl Tarım Müdürlüğü Yayınları.
Hou, H., Wang, Y., & Zhang, M. (2023). Green finance drives renewable energy development: Empirical evidence from 53 countries worldwide. Environmental Science and Pollution Research, 30(33), 80573–80590. https://doi.org/10.1007/s11356-022-21927-2
IMF. (2023). Uluslararası finansal istatistikler [Veri dosyası]. https://data.imf.org/IFS
Im, K. S., Pesaran, M. H., & Shin, Y. (2003). Testing for unit roots in heterogeneous panels. Journal of Econometrics, 115(1), 53–74. https://doi.org/10.1016/S0304-4076(03)00092-7
Jiakui, C., Abbas, J., Najam, H., Liu, J., & Abbas, J. (2023). Yeşil teknoloji, finansal geliştirme ve yeşil üretkenlik: Çin’den manzaralar. Clean Products Journal, 382, 135131.
Kademli, M. (2020). Temel enerji kaynakları. Nobel Yayınevi.
Kao, C. (1999). Spurious regression and residual-based tests for cointegration in panel data. Journal of Econometrics, 90(1), 1–44. https://doi.org/10.1016/S0304-4076(98)00023-2
Khaer, M., & Anwar, S. (2021). Encouraging sustainability and innovation: Green banking practices growing in Indonesia. Jurnal Ekonomi Syar’ah & Bisnis Islam, 9(2).
Kulsum, R., & Huda, S. S. (2018). Yeşil bankacılık ve Bangladeş örneği. Alanlar, 52(2), 197–214.
Li, G., Wu, H., Jiang, J., & Zong, Q. (2023). Sermaye yanlısı teknik ilerleme perspektifinden dijital finans ve düşük karbonlu enerji geçişi (LCET). Energy Economics, 120, 106623. https://doi.org/10.1016/j.eneco.2023.106623
Li, M., Hamawandy, N. M., Wahid, F., Rjoub, H., & Bao, Z. (2021). Renewable energy resources investment and green finance: Evidence from China. Resources Policy, 74, 102402. https://doi.org/10.1016/j.resourpol.2021.102402
Li, Y., & Zhang, J. (2021). The impact of renewable energy consumption on CO₂ emissions: Evidence from China. Renewable Energy, 163, 1–10. https://doi.org/10.1016/j.renene.2020.10.019
Li, Y., Zhang, J., & Wang, B. (2021). Green finance, renewable energy development, and climate change. Nature Communications, 12, 1–10. https://doi.org/10.1038/s41599-023-01595-0
Liong, S. Y., & Lee, C. C. (2023). Financial development and environmental quality: Evidence from ASEAN countries. Environmental Science and Pollution Research, 30(1), 1–12. https://doi.org/10.1007/s11356-022- 22222-2
Lucas, P., & Vardon, M. (2021). Greening the recovery to make it last: The role of natural capital accounting. The Hague: PBL Netherlands Environmental Assessment Agency. https://www.pbl.nl/sites/default/files/downloads/pbl-2021-greening-the-recovery-to-make-it-last- 4458.pdf
Ma, Z., & Jiang, X. (2025). The impact of green finance on energy transition under climate change. Sustainability, 17(15), 7112. https://doi.org/10.3390/su17157112
Maddala, G. S., & Wu, S. (1999). A comparative study of unit root tests with panel data and a new simple test. Oxford Bulletin of Economics and Statistics, 61(S1), 631–652. https://doi.org/10.1111/1468-0084.61.s1.13
Muchiri, J., Erdei-Gally, B., & Fekete-Farkas, M. (2025). Nexus between green financing and carbon emissions: Does increased environmental expenditure enhance the effectiveness of green finance in reducing carbon emissions? Journal of Risk and Financial Management, 18(2), 90. https://doi.org/10.3390/jrfm18020090
Newell, R., William, A., & Daniel, R. (2013). Kyoto'dan 15 yıl sonra karbon piyasaları: Öğrenilen dersler, yeni zorluklar. Journal of Economic Perspectives, 27, 123–146.
OECD. (2017). Mobilising bond markets for a low-carbon transition. https://doi.org/10.1787/9789264272323-en
OECD. (2023). Gelir eşitsizliği [Veri dosyası]. https://data.oecd.org/inequality/income-inequality.htm
Pedroni, P. (1999). Critical values for cointegration tests in heterogeneous panels with multiple regressors. Oxford Bulletin of Economics and Statistics, 61(S1), 653–670. https://doi.org/10.1111/1468-0084.0610s1653
Pedroni, P. (2000). Fully modified OLS for heterogeneous cointegrated panels. Advances in Econometrics, 15, 93–130.
Phillips, P. C. B., & Hansen, B. E. (1990). Statistical inference in instrumental variables regression with I(1) processes. Review of Economic Studies, 57(1), 99–125.
Rakshitha, J., & Chaya, R. (t.y.). Driving sustainability: Exploring global green banking initiatives for a greener future. Journal of Development Research, 15(1).
REN21. (2022). Yenilenebilir Enerji 2022: Küresel Durum Raporu. Paris: REN21 Sekreterliği. https://www.ren21.net/wp-content/uploads/2019/05/GSR2022_Full_Report.pdf
Schmidt, R. (2014). Düşük karbonlu yatırım riskleri ve risk azaltma. Ulusal İklim Değişikliği, 4(4), 237–239.
Sinha, A., & Shahbaz, M. (2023). Estimation of Environmental Kuznets Curve for CO₂ emission: Role of renewable energy generation in India. Renewable Energy, 119, 703–711. https://doi.org/10.1016/j.renene.2017.02.025
Stock, J. H., & Watson, M. W. (1993). A simple estimator of cointegrating vectors in higher order integrated systems. Econometrica, 61(4), 783–820.
Tang, X., & Zhou, M. (2023). Impact of green finance on renewable energy development: A spatiotemporal consistency perspective. Renewable Energy, 204, 320–337.
Tembelo, H., & Özyeşil, M. (2024). Contributions of green finance to sustainable economy: A panel data analysis. Journal of Emerging Economies and Policy, 9(2), 33–48. https://dergipark.org.tr/en/pub/joeep
Udeagha, M. C., & Muchapandwa, E. (2023). Striving for the United Nations (UN) Sustainable Development Goals (SDGs) in BRICS economies: The role of green finance, fintech, and natural resource rent. Sustainable Development, 31(5), 3657–3672. https://doi.org/10.1002/sd.2618
Wang, J., & He, H. (2024). Çift dolaşımın bölgesel karbon azaltım etkileri: Etkiler ve iletim mekanizmaları. Doğu Çin Ekonomi Yönetimi, 38, 75–83.
Wang, S., Sun, L., & Iqbal, S. (2022). Green financing role on renewable energy dependence and energy transition in E7 economies. Renewable Energy, 200, 1561–1572. https://doi.org/10.1016/j.renene.2022.10.067
Wang, Y., & Zhi, Q. (2016). Çevre korumada yeşil finansın rolü: Piyasa mekanizması ve politikalarının iki yönü. Energy Procedia, 104, 311–316.
Wei, J., Wen, J., Wang, X. Y., Ma, J., & Chang, C. P. (2023). Yeşil inovasyon, doğal aşırı olaylar ve enerji geçişi: Asya-Pasifik ekonomilerinden kanıtlar. Energy Economics, 121, 106638. https://doi.org/10.1016/j.eneco.2023.106638
Wu, H., Liu, Y., & Cai, W. (2025). The impact of green finance on carbon emission efficiency: Evidence from Chinese cities (2006–2022). Environmental Science and Pollution Research, 32(5), 21834–21852. https://doi.org/10.1007/s11356-025-18294-0
World Bank. (2023). World Development Indicators [Veri dosyası]. https://data.worldbank.org/indicator/NY.GDP.MKTP.CD
Xu, Y., Zhang, J., & Li, X. (2023). How does green finance achieve urban carbon unlocking? Environmental Science & Policy, 140, 1–9. https://doi.org/10.1016/j.envsci.2023.07.006
Yang, F., Liu, W., Zhang, Y., Yang, G., & Wala, T. (2024). Money grows on green energy: Financing a sustainable power future. Heliyon, 10(7).
Yang, W., & Zhang, X. (2024). Artificial intelligence and religious freedom: Divergent paths converging on economic expansion. Palgrave Communications, 11(1), 1–12. https://doi.org/10.1057/s41599-024-01104-3
Yarımkaya, D. (2021). Alternatif enerji kaynakları. Nobel Yayınevi.
Yılmaz, V., vd. (2018). Küresel ısınma ve küresel iklim değişikliğine ilişkin bilginin kaygı ile farkındalık üzerine etkisi: Bir yapısal eşitlik modeli önerisi. Researcher: Social Science Studies, 6(1), 434–450.
Zhang, Q., Li, S., & Yang, J. (2025). How does green finance affect carbon emission intensity? Spatial spillover and nonlinear effects. Ecological Economics, 220, 108256. https://doi.org/10.1016/j.ecolecon.2025.108256
Zhao, Y., Yue, Y., & Wei, P. (2021). Financing advantage of green corporate asset-backed securities and its impact factors: Evidence in China. Frontiers in Energy Research, 9, 696110. https://doi.org/10.3389/fenrg.2021.696110

Details

Primary Language

English

Subjects

Green Economy

Journal Section

Research Article

Authors

Emine Polat ^*
0009-0003-2504-1423
Türkiye

Erkan Alsu
0000-0001-6102-1786
Türkiye

Publication Date

January 7, 2026

Submission Date

November 20, 2025

Acceptance Date

December 22, 2025

Published in Issue

Year 2026 Number: 102

IZ

https://izlik.org/JA25KZ56JK

Cite

RIS / Bibtex

APA

Polat, E., & Alsu, E. (2026). Green Finance, Renewable Energy and Global Warming Relationship: Evidence From G20 Countries. Reforma, 102, 132-146. https://izlik.org/JA25KZ56JK

AMA

1.Polat E, Alsu E. Green Finance, Renewable Energy and Global Warming Relationship: Evidence From G20 Countries. Reforma. 2026;(102):132-146. https://izlik.org/JA25KZ56JK

Chicago

Polat, Emine, and Erkan Alsu. 2026. “Green Finance, Renewable Energy and Global Warming Relationship: Evidence From G20 Countries”. Reforma, nos. 102: 132-46. https://izlik.org/JA25KZ56JK.

EndNote

Polat E, Alsu E (January 1, 2026) Green Finance, Renewable Energy and Global Warming Relationship: Evidence From G20 Countries. Reforma 102 132–146.

IEEE

[1]E. Polat and E. Alsu, “Green Finance, Renewable Energy and Global Warming Relationship: Evidence From G20 Countries”, Reforma, no. 102, pp. 132–146, Jan. 2026, [Online]. Available: https://izlik.org/JA25KZ56JK

ISNAD

Polat, Emine - Alsu, Erkan. “Green Finance, Renewable Energy and Global Warming Relationship: Evidence From G20 Countries”. Reforma. 102 (January 1, 2026): 132-146. https://izlik.org/JA25KZ56JK.

JAMA

1.Polat E, Alsu E. Green Finance, Renewable Energy and Global Warming Relationship: Evidence From G20 Countries. Reforma. 2026;:132–146.

MLA

Polat, Emine, and Erkan Alsu. “Green Finance, Renewable Energy and Global Warming Relationship: Evidence From G20 Countries”. Reforma, no. 102, Jan. 2026, pp. 132-46, https://izlik.org/JA25KZ56JK.

Vancouver

1.Emine Polat, Erkan Alsu. Green Finance, Renewable Energy and Global Warming Relationship: Evidence From G20 Countries. Reforma [Internet]. 2026 Jan. 1;(102):132-46. Available from: https://izlik.org/JA25KZ56JK