Today, more than ever, climate change represents a serious threat to humanity’s very survival. Historically rising GHG emissions from expanding fossil fuel consumption and industrialization are widely recognized as major contributors to our warming planet (Le, 2022; Jiang et al., 2022). Natural resource extraction and high-value manufacturing use a lot of energy, which is good for the economy (Rahman et al., 2022), but it also creates a lot of trash, which can have a detrimental impact on the environment (Sheraz et al., 2022). Theoretically, the expansion of industries is a major factor in the allocation of scarce resources, the dynamics of economic development, the distribution of energy consumption, and the rate of environmental deterioration (Hu et al., 2020; Hussain et al., 2020). Using dirty energy in production and the increasing industrialization of developing continents have boosted environmental CO₂ emissions and eroded natural capital (Wang X. et al., 2022). With its current rate of expansion, it is seen as a significant energy consumer. Sure enough, several sectors of the industry—notably manufacturing—are consuming a lot of power at high frequencies, which is negatively affecting CO₂ emissions (Muhammad and Long, 2021; Schulhof et al., 2022). The causes of CO₂ emissions and strategies for reducing them in order to lessen their impact on global warming have been the subject of a large body of research (Anwar et al., 2021; Deng and Du, 2020). Nonrenewable energy consumption was determined to be a large source of CO₂ emissions, as fossil fuels account for around 80% of global energy consumption (Wang et al., 2023). It has been established that using nonrenewable energy sources is a major cause of CO₂ emissions (Yang Y. et al., 2022). However, between 2019 and 2024, the global capacity for renewable energy sources is expected to increase by 50 percent, which could mitigate the negative effects of greenhouse gas emissions on the environment and human health (Li et al., 2019; Somoza-Tornos et al., 2021). Regarding this, one body of research has discovered that the use of renewable energy (REN) sources leads to a global reduction in CO₂ emissions (Deng and Du, 2020; Saidi and Omri, 2020).

Various concepts about CO₂ emissions have been investigated by the environmental Kuznets curve (EKC). Developing nations are better off following a growth path different from the EKC, which advocates for rapid economic expansion at the expense of environmental protection (Balsalobre-Lorente et al., 2021; Awan et al., 2022; Beyene, 2022). Growth is both the source and remedy of air pollution, as seen by the US shape link between income and environmental deterioration (EKC) (Liu and Lai, 2021). The EKC rises with rising income due to increased agricultural output. However, there are repercussions associated with tying economic growth and industrial policy to the energy sector. The alignment of economic growth and industrial policy with the energy industry, however, has consequences. Since accelerating economic expansion is incompatible with safeguarding the natural world, we must slow it down (Leal and Marques, 2020). According to the most up-to-date interpretation of the EKC, economic development is linked to deterioration in environmental performance (Liu et al., 2022; Bradley, 2021). Since this is the case, people worry more about things like air pollution, global warming, and the holy vapors that emanate from machines and factories than they do about the severe depletion of energy used per capita (Kaika and Zervas, 2013; Rashid Gill et al., 2018; Khan S. U. et al., 2022). Economic expansion, according to the so-called EKC concept, causes environmental damage at first, followed by improvement later on (Shittu et al., 2021). Studies assessing the link between economic growth and CO₂ emissions have investigated the EKC theory at length, with conflicting results. There is evidence in the literature supporting the EKC theory that shows a negative correlation between per capita CO₂ emissions and GDP (Muhammad and Long, 2021; Tenaw and Beyene, 2021; Cui et al., 2022). The latter piece of work suggests that once high-income countries reach a certain threshold, their per capita CO₂ emissions begin to grow again (Jiang et al., 2022; Li et al., 2022; Fakher et al., 2023). The latter literature suggests that after high-income countries hit a certain threshold, the rate of CO₂ emissions per capita begins to rise once more. Therefore, the mitigation of environmental harm resulting from CO₂ emissions can be facilitated through the adoption of renewable energy sources and the enhancement of energy efficiency. Environmental risk can be mitigated by the implementation and refinement of an effective energy efficiency management program for a firm. Energy management can presently be executed utilizing the same technological expertise that has been applied to manage other, more valuable aspects of the expansion of developing and developed economies, including the value added by industries, per capita energy consumption, and fossil fuel energy (FFE) consumption. This study offers practical recommendations for strategies based on the aforementioned factors.

The causes of CO₂ emissions and strategies for reducing them to lessen their impact on global warming have been the subject of a large body of research (Deng and Du, 2020; Anwar et al., 2021). Nonrenewable energy consumption was determined to be a major source of CO₂ emissions as fossil fuels account for approximately 80% of global energy consumption (Wang et al., 2023). It has been established that using nonrenewable energy sources is a major cause of CO₂ emissions (Yang Y. et al., 2022). Numerous research studies at various continents and temporal scales investigate the causes and distribution of CO₂ emissions in the atmosphere (Dong et al., 2019; Jiao et al., 2020). Tracing the spatial gravity centers of the effects of the drivers revealed that energy intensity was the primary contributor to global CO₂ emissions, while economic growth and population expansion were the most important variables in accelerating CO₂ emissions on a per-country basis (Chang et al., 2019). The study’s key contribution is based on two parts: the use of renewable energy and CO₂ emissions in 55 industrialized and developing nations. First, there is the deliberate movement toward renewable energy sources, which demonstrates that industrialized nations are making a concerted effort to lessen their dependency on fossil fuels and reduce CO₂ emissions (Işık et al., 2024). To further reduce their growing CO₂ emissions and achieve sustainable development, businesses are also investigating renewable energy sources. Second, there is a growing movement toward renewable energy sources as a result of governments’ growing awareness of the connection between CO₂ emissions and climate change (Adu et al., 2023). This trend is true in both developed and developing nations (Bergougui, 2024). Renewable energy sources are quickly becoming the preferred energy source for many nations as they become more conscious of the environmental impacts and CO₂ emissions caused by fossil fuels (Sufyanullah et al., 2022; Dehghan Shabani, 2024). Thus, this work makes a fourfold contribution. This study’s insights are valuable additions to the literature because of them. Strong evidence from this study supports the idea that rapid economic growth affects the green economy. While conclusive research is lacking, it is safe to assume that national market mechanisms are impacted by the structure of economic growth. There was a positive correlation between energy’s role, economic growth, and the influence of CO₂ emissions, as well as rapid changes in national structures.

Although these studies employ a wide variety of methodologies and datasets to investigate this impact, the vast majority of them rely on a linear relationship between REN consumption, nonrenewable energy consumption, GDP per capita, and CO₂ emissions per capita (see Section 2 for a more detailed account of the literature) (Karaaslan and Çamkaya, 2022; Rahman et al., 2022). Despite renewable energy’s potential to fight climate change, this study reveals that major obstacles persist, particularly in both wealthy and developing nations. Widespread adoption is impeded, especially in poorer nations, by the cost, infrastructure limits, and the necessity for enabling regulations. In addition, it is crucial to transition away from fossil fuels quickly since the climate crisis is worsening. This will need international collaboration and a fair transition so that poor nations can afford to switch to renewable energy. This study distinguishes itself by focusing on economic growth; similarly, previous research studies have examined the dynamic relationship between energy use in developing countries and economic growth (Wang and Yan, 2022; Fakher et al., 2023). In this study, we use recently established panel threshold models to analyze panel data for 97 countries, spanning 1970–2022, for figuring out whether there is a nonlinear relationship between these three variables and CO₂ emissions (Abbasi et al., 2021). Once a country reaches a particular level of REN consumption, we find no negative correlation between REN consumption and the growth of per capita CO₂ emissions (Bekhet and Othman, 2018). In other words, only countries whose REN consumption exceeds a certain threshold would see a decline in their per capita CO₂ emissions as their REN consumption increases (Mendonça et al., 2020; Mei et al., 2023).

A nonlinear relationship between an individual’s share of REN in their total energy use and their CO₂ emissions is supported by theoretical considerations. The initial cost of REN is high, and its ongoing cost is higher than the cost of using conventional energy sources. Since the capacity to store REN is lower than that of nonrenewable energy sources, there can be supply problems during periods of high energy demand (Ocal and Aslan, 2013; Chen et al., 2022). For instance, a study conducted between 1984 and 2007 that examined REN use in 19 developed and developing countries found that it did not result in a reduction of CO₂ emissions (Apergis et al., 2010). However, improvements in technologies (Rubin et al., 2015) used to utilize REN have been made recently. Furthermore, the cost of utilizing REN sources has decreased over the past few years, and the quality of REN technology has considerably improved due to substantial investments in R&D (Schilling and Esmundo, 2009; Chen et al., 2019a). Therefore, we expect that if countries achieve a specific threshold of REN consumption, it will significantly influence the reduction of CO₂ emissions, lower industrial emissions, and decrease fossil fuel energy consumption. This is owing to the fact that high investment costs and storage problems may render the impact of REN usage on CO₂ emissions negligible at lower levels of consumption. The most important takeaway from this research is the discovery of REN behavior as a dependent variable in the context of growth and CO₂ emissions and the influence that this has on the listing of developing and developed countries by continent.

There are a few areas in which our paper adds to the existing body of research. To begin, a quadratic term of GDP per capita is typically utilized in the existing literature on EKC to represent REN impacts (see, for example, Jiang et al. (2022); Chang et al. (2023)). Although earlier research has examined the effects of GDP per capita on CO₂ emissions, it has paid less attention to the inverse relationship between REN, economic growth, energy consumption, and the nexus of CO₂ emissions. This work employs a panel dataset to predict the relationship between CO₂ emissions, energy use per capita, industries, construction, and fossil fuel energy consumption, allowing us to test for all conceivable associations with the generalized linear model (GLM) and robust least squares (RLS) method. Second, this study employs the GLM and RLS method to measure the inverse relationship of REN as the dependent variable and to emphasize the influence of policymakers in both developing and wealthy countries on a continental scale. Consider the role that CO₂ and other gases emitted into the atmosphere by burning fossil fuels, such as coal and petroleum gas, play in increasing the frequency and severity of devastating storms. Finally, the cross-sectional dependence was ignored in favor of the first-generation unit root test in the majority of the available literature. After checking for cross-sectional dependence, we employ second-generation unit root tests in this paper. The variables used in the regression model are decided based on the unit root results.

The remainder of this paper is structured as follows. The causes of REN and CO₂ emissions are examined in Section 2 of this paper. The specifics of the empirical estimating strategies are presented in Section 3. The specifics of the dataset utilized for this analysis are provided in Section 4. Finally, Section 5 provides the results of the dynamic linear and threshold estimations, the robustness analysis, and the cross-sectional dependence and panel unit root tests. Section 6 concludes the report and provides policy suggestions.

Large-scale construction projects and infrastructure—including roads, bridges, power plants, dams, cement, and steel—have been shown to contribute significantly to global warming (Deng and Du, 2020; Wu et al., 2021; Sheraz et al., 2022; Wang Z. et al., 2022; Yang Y. et al., 2022). Consequently, environmental quality will increase, and creating substitutes is widely recognized as a practical way to cut down on CO₂ emissions. As a result, there will be a marked improvement in environmental quality, and the creation of substitutes is widely recognized as a viable strategy for reducing CO₂ emissions.

It is important to note that the energy development levels of emerging and industrialized countries are vastly different (Su et al., 2022) and that some poor countries have tremendous renewable resources. Therefore, there is a significant difference in energy development between emerging and developed countries, while some developing countries have plentiful renewable resources (Chen et al., 2020; Schulhof et al., 2022). The ambitious goals, despite rigorous academic research on the foundation and contribution exploring to fulfill these strategic objectives, are still scarce and dangerous (Isik et al., 2019; Nwaka et al., 2020; Ren et al., 2021). Therefore, this study contributes fourfold. Insights like these from this study are useful contributions to the canon of written work. The findings of this research lend credence to the theory that brisk economic expansion has an impact on the green economy (Jiang et al., 2022). There has not been a definitive study demonstrating this, but the structure of economic growth does have an effect on the market mechanisms of individual nations. Rapid changes in national structures were found to be positively correlated with factors including energy’s role, economic growth, and the impact of CO₂ emissions (Muhammad et al., 2020).

According to recent research, an assortment of effects that economic expansion has on CO₂ emissions in industrialized and developing nations demonstrate the statistical relevance of the correlation between economic growth and CO₂ emissions (Chang et al., 2023; Baajike et al., 2024). On the contrary, certain perspectives have highlighted that numerous developed and developing nations have mitigated their CO₂ emissions by incorporating CO₂ into the items they import via international commerce (Foster et al., 2023). More precisely, the country of production is held accountable for these emissions. Regarding the association between CO₂ emissions and economic growth, a study employing the GLM and the RLS methods identified an inverse relationship between the two variables in industrialized nations (Alam and Hossain, 2024; Li et al., 2024). Comparatively, the utilization of renewable energy has been found to significantly decrease CO₂ emissions, while sustainable economic expansion has been found to increase CO₂ emissions (Lin and Ullah, 2024). Additionally, this research unveiled a reciprocal causal relationship that extends in all directions: from REN to CO₂ emissions, technological innovation to CO₂ emissions, GDP to REN, and REN to technological innovation (González-Álvarez and Montañés, 2023). Furthermore, economic diversification and the investment of natural resource extraction proceeds in innovative technologies can contribute to the advancement of sustainable development (Alvarado et al., 2023). Although technical advancement and ecological security are not the only significant metrics, limited attention is paid to the double-edged influence on CO₂ emission reduction (Khan R., 2021; Ongan et al., 2022).

Changes in infrastructure and development, including urbanization and lifestyle changes, have outpaced efficiency expansion as CO₂ emissions have increased (Işık et al., 2021; Khan R., 2021; Khan et al., 2022b; Khan, 2023). Environmental sustainability and economic growth are both important, yet many believe they are incompatible since economic growth threatens the environment (Jahanger et al., 2022). Similarly, the use of wind power has prevented the release of at least 600 million tons of CO₂ into the atmosphere in 2017. Energy transition faces structural threats, yet REN’s potential to support long-term sustainable development is promising (Mi et al., 2021; Raihan et al., 2022). There are several severe drawbacks to REN, including high investment prices, insufficient scientific and technological developments, onerous infrastructural needs, and limited information accessibility. Although REN has been demonstrated to provide environmental benefits, these advantages are still contested in practice (Apergis et al., 2010). There has been a shift in focus toward REN sources due to their lower environmental impact. In terms of CO₂ emissions, REN sources like solar photovoltaics (PV) and wind power are among the most promising (Yousefi, 2019; Wang and Sun, 2012).

By examining the interconnections between developing and developed nations in terms of CO₂ emissions, economic growth, renewable energy utilization, industries, and trade, this study reveals substantial ramifications for these sectors and environmental policy (Wu et al., 2018; Yang X. et al., 2022). Given the origins of excessive pollution in recent years, greater emphasis has been placed on the interconnectedness of energy waste, energy transitions, and environmental sustainability. Both developed and emerging nations have robust technological capabilities and adhere to stringent environmental policies (Abbasi et al., 2022; Jahanger et al., 2023). Despite possessing a substantial ability to absorb environmental risks, the industrialized world continues to face challenges in regulating and mitigating the ongoing emissions. Developed and emerging nations alike have adopted rigorous environmental rules and are equipped with cutting-edge technologies, which confers upon them a considerable ability to assimilate environmental risks (Kaika and Zervas, 2013; Bashir et al., 2024). As a result, however, industrialized nations’ efforts to regulate and mitigate ongoing emissions continue to be hindered. In addition, Nathaniel and Iheonu (2019) used the augmented panel mean group (APMG) estimator to analyze the impact of REN on CO₂ emissions in 19 sub-Saharan nations and concluded that this type of energy had a negligible effect on global emissions. Recent research has suggested that REN will not significantly reduce CO₂ emissions until it reaches a certain level of development; at that point, the focus will shift from lowering the cost of energy transition to increasing energy efficiency.

First, REN sources are becoming increasingly popular as the global economy becomes more integrated. REN sources benefit from economic globalization because of the money and expertise they may get from around the world (Doytch and Narayan, 2016; Liu et al., 2016). Its secondary effects improve environmental quality (You and Lv, 2018). Through liberalized trade, for instance, developing countries can acquire items and technologies that are green and save energy from developed countries with established renewable energy companies (Koengkan and Fuinhas, 2020). Additionally, when nations work together to develop a robust market for REN, the price of switching to this energy source can be brought down significantly. Second, political globalization encourages nations to adopt policies that protect the environment and collaborate to reduce CO₂ emissions output. In 2015, for instance, 196 UNFCCC parties adopted the Paris Agreement, which was proposed to deal with climate change. The Paris Accord laid up a system via which countries might receive aid in the form of both money and expertise (Jiang et al., 2021). Third, the societal norm of using REN and conserving the environment is being encouraged by cultural globalization, and because of the dissemination of information, the need to protect the environment is now recognized on every continent. As a result, the ability of REN to reduce CO₂ emissions should increase as the world becomes more interconnected. Globalization may alter the nexus between REN and emission levels of CO₂ emissions from OECD nations; however, this point is still up for debate.

Unlike previous research, which has used external variables like globalization to examine the link between REN and CO₂ emissions, the current study takes into account endogenous factors like REN and CO₂ emissions themselves (Adebayo and Acheampong, 2022; Nan et al., 2022). To determine whether the correlation between REN and CO₂ emissions has shifted as a result of globalization, this article uses the PSTR model, with globalization as the transition variable. Since this is a nexus between REN and CO₂ emissions, one of our goals is to investigate globalization’s part in this relationship. The aforementioned studies not only advance their respective fields of study but also give us a chance to dig deeper into the connection between REN and CO₂ emissions. Our research is distinct from the aforementioned in that we aim to investigate the dynamic benefits of REN in reducing CO₂ emissions when globalization levels shift.

(Figures 4A, B) There was a positive benefit in a high economic growth regime but a negative effect on CO₂ emissions for all EAS countries except Australia, Japan, and New Zealand. Using a panel autoregressive distributed lag (PARDL) model (Koengkan and Fuinhas, 2020; Khan, 2022; Khan et al., 2022c; Khan, 2023), researchers analyzed the impact of switching to REN on CO₂ emissions in LAC nations (Shahbaz et al., 2018), which is suitable for analyzing alterations in parameters over time. In order to better understand these energy challenges, this research employs the GLM and RLS model. For example, Aydin and Cetintas (2022) observed that when using REN as the transition variable, there is an inverted US-shaped link between economic progress and environmental degradation. Chiu and Lee (2020); Rabnawaz Khan and Kong (2020); Khan S. Z. R. (2021); Aydin and Cetintas (2022) used a number of transition variables to examine the impact of country risks on the energy-finance nexus. Both the short- and long-term analyses revealed that transitioning to REN decreased CO₂ emissions. Bilgili et al. (2016) drew their conclusions from studies conducted in 17 OECD countries and found that CO₂ emissions were reduced while economic growth was increased because of the use of REN.

Furthermore, developing countries are expected to be the source of climate catastrophe in Asia in the coming decades (Yu et al., 2023). However, their weak infrastructure and lack of resources will make it difficult for them to adapt to and sustain economic growth in the face of a changing climate. This is evidenced by Singapore’s high economic growth with relatively low CO₂ emissions and Brunei’s emissions being above the median line. On the other hand, a developing nation that is short on grid infrastructure and in need of investment in smaller, distributed renewable energy solutions would not benefit from the same program (Ali et al., 2023). To encourage renewable energy and decrease CO₂ emissions, it is essential to understand these intricacies and craft successful policies. Due to their distinct situations and problems, industrialized and developing nations call for distinct strategies (Wolde-Rufael and Weldemeskel, 2020; Raihan et al., 2022). Extensive studies in the economies of Brazil, Russia, India, Indonesia, China, Turkey, and South Africa (BRIICS) revealed that REN helps improve environmental quality (Khan, 2023; Li et al., 2024). They all agreed that increasing the use of REN sources and addressing problems with energy demand should be at the forefront of any environmentally friendly industrial plan. Despite the strong will behind transitioning to renewable energy and reaching net-zero emissions, there are still substantial legislative hurdles to overcome, especially when contrasting the realities of developed and developing countries. Public support and political will for ambitious climate policies are two factors that can be challenging to translate into action in developing nations, even if environmental issues are likely to be high on the public agenda (Abbasi et al., 2021). Rigid environmental restrictions can be thwarted by powerful lobbying efforts by special interests in the fossil fuel sector. The second part is financial factors; political and public opposition may arise from the perceived short-term economic costs of abandoning the fossil fuel infrastructure that has been in place for a long time (Saba, 2023). In order to achieve both short-term economic success and longer-term environmental sustainability, thoughtful policymaking is required. In the case of developed countries, reducing poverty and boosting the economy are typically seen as two opposing goals. There may be competition for scarce government resources and attention from environmental concerns, even as they are gaining recognition (AlNemer et al., 2023). Second, funding, technical knowledge, and physical infrastructure in poor nations may be insufficient to establish and uphold thorough environmental regulations. Because of this, it may be difficult to implement and sustain renewable energy solutions (Perone, 2024). However, these policy problems can be addressed through international cooperation. Financial aid from developed nations can encourage developing nations to engage in renewable energy infrastructure, scientific research, and capacity-building programs. Innovations in renewable energy technology can be shared to hasten its implementation in underdeveloped nations (Yadav et al., 2024).

Many studies have examined the environmental impact of REN, but their findings have been inconsistent. In general, two themes emerge from the empirical data (Sung et al., 2018). The first group of studies shows that decreasing CO₂ emissions and boosting the use of REN sources help the environment. The increasing use of REN sources has a negative impact on the environment, consumes valuable green space, and exacerbates pollution, all of which make it harder to cut down on CO₂ emissions. (Tran et al., 2022) As a result, it is important to discuss the impact that REN has on CO₂ emissions. The second line of thought proposed that there was no real impact of REN on the environment, and some academics offered proof for this claim. Dong et al. (2020) suggested that countries with lower per capita income did not benefit from the CO₂ emission reduction benefits of REN. In contrast, reduction impacts are sizable in both nations with low and high per capita income. They said that countries with greater incomes already have the capital to invest, state-of-the-art scientific knowledge, and the required infrastructure to reduce CO₂ emissions (Algieri et al., 2022). We have discussed the intricacies and difficulties in relation to renewable energy and CO₂ emissions. First, from a socioeconomic perspective, emerging nations have the necessary infrastructure in place and access to larger sums of money to invest in renewable energy. Integration with the grid and efficiency gains can be their primary goals (Elstad, 2022). Renewable energy sources, such as solar and wind power, may be plentiful in developing nations despite their lack of investment and energy infrastructure (Ali et al., 2023). The provision of initial financial support and the construction of new infrastructure may be their top goals. Second, developed nations have set clean energy targets or carbon pricing mechanisms to encourage the use of renewable energy sources. In terms of environmental policy enforcement, poor nations either do not have the necessary resources or have less robust regulatory frameworks (Kartal et al., 2023). Third, when it comes to energy infrastructure, industrialized nations have advanced grids that can accommodate renewable power generation on a massive scale (Ali et al., 2023; László, 2023). Renewable energy integration is more difficult in developing countries due to low-quality infrastructures or high reliance on energy sources derived from fossil fuels. Fourth, policies that work in rich nations with well-developed infrastructure and carbon pricing may not have the same impact in poor nations with fewer resources (Jahanger et al., 2023). An industrialized nation with a robust infrastructure might benefit from a program that encourages large-scale solar installations through feed-in tariffs.

Additionally, the United Arab Emirates and Qatar (countries with the second-highest ecological footprint globally) are contributing to increasing CO₂ emissions in the MENA region; Romania’s fossil fuel combustion decreased by 14.6% in 2012; in Turkmenistan, CO₂ emissions increased from 19 million to 100 million, at an annual rate of 10%–20% from 1997 to 2016; and CO₂ emissions in Hungary and Ukraine are decreasing slightly. Using the generalized spatial two-stage least squares (GS2SLS) method, Radmehr et al. (2021) investigated the immediate triggers of the CO₂ emission increase during 1995–2014 in the context of ECA. They identified a unidirectional causal relationship between REN and CO₂ emissions, recommending that CO₂ mitigation techniques should be included in investment plans for REN. Furthermore, the results showed a weak negative correlation, which may be because educational opportunities are underfunded despite the fact that they would improve both technological competence and environmental literacy (Barnea et al., 2022). One competing theory holds that the high levels of CO₂ emissions seen in both developing and wealthy nations show that the investments made in the human sector through industrialization so far are not enough to significantly reduce these emissions (Bergougui, 2024). Further environmental harm is increased by using non-REN sources. Energy sources that cannot be replenished increase opportunities for business, transportation, agriculture, and job creation. In response to increasing CO₂ emissions, the demand for alternative REN sources has surged in the last several decades (AlNouss et al., 2022).

The contribution of CO₂ emissions, EPC, IVA, GDPC, CMIC, and FFE is largely exogenous, implying that regions are subject to varying influences. CMIC and FFE exert a considerable influence on predictor factors on the EAS and MENA continents but a limited influence on the prediction of REN on the SES and ECA continents. In addition, a predator exhibits a strong endogenous influence on REN removal in the future, whereas REN demonstrates a weak endogenous influence on itself (Chiu and Chang, 2009). The effect of reducing CO₂ emissions would not be visible until the share of REN supply in total energy supply for the 20 OECD countries reached 8.39 percent between 1996 and 2005, according to one analysis. Attempts to demonstrate a causal relationship between REN and CO₂ emissions have yielded varied results, which may be related to a number of factors. When analyzing the relationship between REN and CO₂ emissions, it is critical to remember that globalization may have a significant effect. The numerous environmental benefits of globalization include the promotion of renewable energy sources and the decrease of pollution. Global environmental policy differs greatly between developed and developing countries (Kwilinski et al., 2024). Harsher environmental laws are typically implemented by developed nations in response to public pressure and harsher legislation. Investments in clean technology, emission reduction goals, and carbon pricing schemes are all examples of what could fall into this category (Grodzicki and Jankiewicz, 2022). Policy changes like these, however, are not always cheap or simple to implement. However, reducing poverty and boosting economic growth are frequently the top priorities of developing nations (AlNemer et al., 2023). Despite growing awareness of environmental issues, comprehensive environmental policies may be challenging to establish and uphold due to a lack of funding and other competing demands (Perone, 2024). In order to help developing nations build strong environmental rules and implement sustainable development practices, developed countries can provide financial aid and work together internationally to close this gap.

The goal of this study is to investigate the nexus between renewable energy consumption and CO₂ emissions and economic growth by using a panel estimate approach in developing and developed countries over the period 1970–2022. Our strong motivation is to fill the gap related to the absence of studies discussing this subject in developing and developed countries. Developing and developed countries are an exact representative example of a continent’s economic corporation, and it is a plan based around two cores with low to high income. Analysis of the data shows a correlation between CO₂ consumption, renewable energy, manufacturing industries, construction value added, and GDP per capita, as well as regional growth and cooperation potential for energy consumption among countries. The major findings can be summarized as follows: there is a feedback relationship between economic growth and renewable energy consumption in the case of whole, developing, and developed countries. The countries on the same continent tend to behave differently in terms of their economic contributions; hence, policy recommendations for energy are broken down by region. Positive and rapid economic growth was seen in East Asian countries, and a correlation was found between GDP per capita, industry value added, and renewable energy.

The primary suggestions emerging from our study can be introduced as follows. First, the emergence of a feedback relationship between the renewable energy category and income explains the strong association between them. Inside the groups of countries analyzed, the mentioned association proposes energy strategies intended to expand the utilization of renewable energy, producing a positive effect on output. Policymakers should encourage renewable energy projects to beat the limitations on nonrenewable energy consumption and ameliorate economic growth. Second, we discover a bi-directional causality between trade and economic growth. It implies that trade plays a vital role in enhancing the growth of developing and developed countries. It involves that policy that accelerates economic growth will prompt the trade. In addition, it implies that policymakers should prompt trade to facilitate the creation of a competitive advantage, accelerate the transfer of technical knowledge, and attract foreign direct investment. Third, we show a feedback connection between trade and renewable energy consumption. This implies that trade openness needs to outlay more renewable energy consumption. In addition, it involves that renewable energy helps the integration of developing and developed countries in international trade. Openness is an important vehicle serving the transfer of renewable energy technology. Policymakers ought to take distinctive measures to develop the renewable energy division, for example, giving fiscal incentives for renewable energy and promoting investing in renewable energy projects. Energy preferences can also be influenced by societal norms on sustainability and the severity of environmental laws in a given nation. Another disclaimer is that “spillover effects”—the phenomenon whereby a change in energy policy or technology in one country influences the energy dynamics in neighboring countries—may have been disregarded in the study. Furthermore, recent technological developments—adoption of renewable energy sources and energy intensity could be profoundly affected by innovations in energy efficiency and battery storage. Energy usage and emissions can be influenced by policy interventions such as carbon pricing schemes or subsidies for renewable energy. Furthermore, the degree of government bureaucracy and the rigor of environmental rules are examples of institutional factors that could influence energy consumption decisions. Public sentiments toward sustainability and energy conservation are examples of socio-cultural factors that can impact energy usage habits. In addition, policymakers may be able to gain a deeper understanding of the topic and make more comprehensive changes to relevant policies in the future if they analyze the link between the empirical study and a theoretical framework.

The implications of these results for policies and initiatives aimed at accomplishing a transition to renewable energy and net-zero emissions are substantial. Our research emphasized that by addressing income inequality via income redistribution, there would be a substantial increase in the utilization of renewable energy sources, accompanied by a reduction in energy intensity and nonrenewable energy consumption. According to the results of the study, the introduction of feed-in tariffs, the lowering of barriers, and the provision of financial aid are all examples of financial incentives that are necessary for the implementation of renewable energy sources. The economy may reduce its impact on the environment by using less fossil fuels. We must support environmentally conscious businesses, encourage the usage of green bonds, and set standards for environmentally conscious responsible financial operations. Planning for sustainable urban environments, including walkability, compactness, and energy efficiency, must be a top priority.

Despite providing a moderate empirical contribution to policy concerns regarding the attainment of energy transition and net zero, this study is not without its constraints. We utilized a global sample of 55 nations for our research. Although utilizing a sizable sample size enhances the validity of generalizations and conclusions, it is likely that the policy recommendations it generates do not pertain to specific countries. This constraint enables further research endeavors to examine the correlation between renewable energy, economic growth, energy consumption, and the interplay of CO₂ emissions in industrialized and developing countries through the implementation of country-specific analytical methodologies. This would substantially aid policymakers in comprehending the political and economic obstacles that impede the attainment of carbon neutrality and energy transition by 2050. However, our research has policy implications that could potentially inform worldwide energy transition and net-zero strategies.