Environmental sustainability is one of three pillars of sustainability. However, a significant worldwide deterioration in the environment has been experienced since the Industrial Revolution, but the efforts to protect the environment date back to the 1970s. In this context, many economic and non-economic factors underlying environmental degradation have been investigated until today, but the influence of economic freedom indicators and education on the environment have been relatively less analyzed and the researchers have mainly focused on the influence of economic and institutional variables on the environment. Therefore, this paper investigates the reciprocal interplay among economic freedom indicators, education, and environment in EU member states over the 2000–2018 term by using a causality test with cross-sectional dependency and heterogeneity and taking the research gap into consideration. The causality analysis indicates that market-oriented economic structure and education can be beneficial in combatting environmental degradation.

Environmental degradation is one of the most significant problems of the globalized world. This paper explores the impact of institutional development and human capital on CO₂ emissions in 11 EU transition economies over the period of 2000–2018 through co-integration analysis. The co-integration analysis revealed that human capital negatively affected CO₂ emissions in Croatia, the Czech Republic, Hungary, and Slovenia, and that institutions had a negative impact on CO₂ emissions in the Czech Republic. However, both institutions and human capital positively affected CO₂ emissions in Latvia and Lithuania.

Renewable energy has become a crucial factor for circular economies, sustainable development, and the environment given the limited non-renewable energy reserves and global environmental degradation mainly resulting from non-renewable energy use. This study explores the effect of educational attainment and economic growth on renewable energy use in a sample of selected emerging markets over the 2000–2018 period through causality and cointegration analyses. Causality analysis points out a significant unidirectional causality from indicators of educational attainment and economic growth to renewable energy use. In other words, educational attainment indicators and economic growth are significant determinants of renewable energy in the short run. Furthermore, the cointegration analysis ascertains a positive influence of indicators of educational attainment and economic growth on renewable energy use in the long run. The findings of both analyses indicate that educational attainment and economic growth have a significant impact on renewable energy use in the short and long term. Therefore, the policies fostering educational attainment can be used as instruments to increase the share of renewable energy use in total energy consumption.

Education is one of the Sustainable Development Goals (SDGs) of the United Nations and is also a vital factor for nearly all the other SDGs. Therefore, factors underlying educational attainment are crucial for achieving the SDGs by 2030. In this context, the financial system has become critical in building various schools and covering educational expenditures such as teachers’ salaries, teaching materials, and training. This paper uses static and dynamic regression methods to study the impact of financial sector development, remittances, real GDP per capita, information and communications technologies (ICT) development, and globalization on educational attainment in 18 emerging economies over the 2000–2020 period. The results indicate that financial development, remittances, real GDP per capita, ICT development, and globalization positively impact educational attainment. Real GDP per capita, ICT development, globalization, and financial development have the highest impact of these factors. In contrast, remittances have a limited positive influence on educational attainment compared with other variables.

Fossil fuels are among the most crucial factors underlying global environment impairment through CO₂ emissions. In addition to this, the globalized world has witnessed significant price volatility, instability and disruptions in the supply of fossil fuels. Therefore, renewable energy transition (RET) has become a mandatory option for countries to tackle these environmental, economic, and energy insecurity problems in energy markets dominated by fossil fuels. But the RET process has remarkably slowed down in recent years due to increasing economic volatility, financial obstacles, geopolitical risks, and bottlenecks in the development of low-carbon technologies. In this regard, this study investigates the effect of market structure proxied by economic freedom and indicators of financial development, together with real GDP per capita and education, on the utilization of renewable energy in post-transition EU member states across the 2000–2021 duration by utilizing causality and cointegration tests. The outcomes of the causality analysis reveal a feedback relationship among renewable energy use, economic freedom, indicators of financial development, and real GDP per capita but a unilateral causality between education and renewable energy use. On the other hand, the outcomes of AMG estimation reveal a positive effect of economic freedom, real GDP per capita, and education on the utilization of renewable energy in some countries but a negative effect of financial institutions’ development on renewable energy use and mixed results on the effect of financial markets’ development regarding renewable energy use. Our results indicate that education is a significant instrument to make progress in renewable energy use via multiple channels, but governments should incentivize the financial system to support the RET process by favorable lending and sustainable finance instruments like green bonds or sustainability-linked loans.

Countries have turned to developing renewable energy production, avoiding the risks posed by the disruptions in global energy trade, the high volatility in energy prices, and the remarkable environmental impairment. Numerous economic, environmental, institutional, and social factors have been put forward as driving factors toward renewable energy. The goal of this research article is to study the causal nexus among energy dependency, human capital, real GDP per capita, CO₂ emissions, and renewable energy of the 27 EU members between 2000 and 2020 through Emirmahmutoglu and Kose causality test. The results of the panel-level causality tests demonstrate feedback interplay among energy dependency, human capital, real GDP per capita, CO₂ emissions, and renewable energy use. However, the results of the country-level causality analysis unveil that the interplay among renewable energy utilization, energy dependency, real GDP per capita, CO₂ emissions, and human capital remarkably varies among EU members. The results of this study suggest that renewable energy investments are significant instruments to make progress in energy security, human capital, real GDP per capita, and CO₂ emissions. Furthermore, energy security, human capital, real GDP per capita, and CO₂ emissions are significant drivers of renewable energy development.