The Role of Sustainable Finance in Promoting Environmental Sustainability: Examining the Nexus Between Green Investment, Carbon Emissions, and Economic Growth

Abstract

Environmental sustainability has become a critical global concern due to accelerating climate change, environmental degradation, and increasing carbon emissions, highlighting the need for financial systems that support sustainable development. This study examined the influence of sustainable finance on environmental sustainability by investigating the roles of green investment, carbon emissions, and economic growth within the Pakistani context. A quantitative cross-sectional research design was employed, and primary data were collected through a structured five-point Likert scale questionnaire administered via an online Google Form. The study targeted university students, academics, banking and finance professionals, corporate employees, environmental experts, and policymakers from the provinces of Punjab and Sindh, Pakistan, including participants from major public and private universities, financial institutions, and environmental organizations. Using a convenience sampling technique, data were obtained from 433 respondents and analyzed using IBM SPSS Statistics. The analysis included descriptive statistics, Cronbach's alpha reliability analysis, Pearson correlation, multiple linear regression, independent samples t-test, and one-way analysis of variance. The findings revealed that sustainable finance and green investment have significant positive effects on environmental sustainability, whereas carbon emissions exert a significant negative influence. Green investment emerged as the strongest predictor of environmental sustainability, while sustainable finance and economic growth also contributed positively to sustainable environmental outcomes. The study further identified significant differences in environmental sustainability based on respondents' gender and age groups. The results demonstrate that strengthening sustainable financial practices and promoting green investments can effectively support environmental protection while facilitating sustainable economic growth. The study contributes to the growing body of knowledge on sustainable finance by providing empirical evidence from a developing economy and offers practical implications for policymakers, financial institutions, investors, environmental organizations, and corporate decision-makers in designing policies and investment strategies that accelerate the transition toward a low-carbon and environmentally sustainable economy. The findings also provide a valuable foundation for future research on sustainable finance, green investment, and environmental sustainability in emerging economies.