Renewable-nonrenewable energy: institutional quality and environment nexus in South Asian countries

Fiscal spending and green economic growth: evidence from highly polluting Asian economic

The study examines the link between fiscal expenditure and green economic development in heavily polluting Asian nations. The conventional wisdom that environmental sustainability and economic progress are incompatible is contested in this research. The study found a strong positive link between green fiscal policy and long-term economic development, offering empirical support for using fiscal policy to promote green growth. With an emphasis on high-pollution sectors like manufacturing and energy, the study used sophisticated econometric approaches, such as panel data regression and Granger causality tests, to evaluate the data from a few Asian nations. The findings supported the idea that increased government investment in environmental protection programs and eco-friendly technology positively impacted green economic development. The results also highlight how governmental actions influence economic trajectories and aid in the shift to a sustainable economy. The report emphasizes the need for cross-level and cross-sector policy coordination, arguing that achieving significant green economic development with comprehensive, well-integrated green fiscal policies would be more straightforward. The study also highlights the need for international collaboration and assistance while acknowledging possible restrictions on fiscal expenditure in emerging nations. Policymakers, environmental economists, and other stakeholders who want to transition to a green economy while pursuing economic growth and development should take these conclusions seriously. The linkages among fiscal investment and green economic development in heavily polluting Asian nations are substantially established in this work, but it also highlights the need for additional study. Future research could benefit from examining these patterns in a broader range of situations and over extended periods, given the intricate interaction of variables driving fiscal policy and green growth.

Time-varying impact of income and fossil fuel consumption on CO2 emissions in India

This paper investigates the time-varying effects of fossil fuel consumption on CO2 emissions in India utilizing the time-varying cointegration test, allowing for multivariate long-run time-varying cointegration parameter developed by Bierens and Martins (2010) and the time-varying vector autoregressive (TVP-VAR) model developed by Primiceri (2005). The long-run time-varying coefficients reveal that GDP has a positive and increasing impact on CO2 emissions over time. Moreover, results confirm the polluting effects of all fossil fuels. Besides, the TVP-VAR model findings also demonstrate that changes in income and fossil fuel consumption have a positive and significant impact on environmental degradation. Coal is found to be the most polluting fuel, followed by oil consumption. Furthermore, the time-varying responses show that increased natural gas consumption has the least influence when compared to other fossil fuels on CO2 emissions.

Political competition and environment quality: a study of India

The focus of sustainable development goals (SDGs) is to promote the use of renewable energy so that countries can achieve better environmental quality. However, the progression is plodding, and still, 80% of energy comes mainly from conventional sources in developing countries. The implementation of procedures depends on the political attitudes, political stability, and quality of institutions. India has a diverse political structure ranging from central government to state government to local governments. In the late '80 s, India witnessed a stiff rise in regional and national political parties, which leads more political competition. This paper tries to explain the possible relationship between political competition and CO2 emission in India. With the application of the time series non-linear ARDL (NARDL) model, this study tries to find the asymmetric relationship between political competition and CO2 emission. In our empirical model, we also include other important elements of environmental quality like innovation and fossil fuel consumption. Empirical results show that political competition is asymmetrically related to CO2 emissions in the long run. Fossil fuel consumption and innovation also have a significant relationship with emissions. Based on the results, a few policy recommendations have been discussed.

Information and communication technology, institutional quality, and environmental sustainability in ASEAN countries

Concerns regarding climate change pollution have remained critical in achieving sustainable development goals. However, countries are still having difficulty reducing environmental deterioration, requiring substantial attention. Hence, this study evaluates the effect of information and communication technology (ICT), institutional quality, economic growth, and energy consumption on ecological footprint under the environment Kuznets curve (EKC) framework in the Association of Southeast Asian Nations (ASEAN) countries from 1990 to 2018. Moreover, this study also checks the impact of an interaction term (ICT and institutional quality) on ecological footprint. We utilized cross-section dependence, cross-section unit root, and Westerlund's cointegration tests for the econometric investigation to check cross-section dependence, stationarity, and cointegration among parameters. For long and short run estimation, we used pooled mean group (PMG) estimator. PMG outcomes demonstrate that the ICT and institutional quality clean the environment by mitigating the ecological footprint. Further, the joint impact of ICT and institutional quality also moderate environmental degradation. Moreover, economic growth and energy consumption increase the ecological footprint. In addition, empirical outcomes also support the presence of the EKC hypothesis in ASEAN countries. The empirical outcomes suggest that environmental sustainability's sustainable development goal can be achieved through ICT innovation and diffusion and by improving the intuitional quality framework.

Evaluating the role of renewable energy and technology innovations in lowering CO2 emission: a wavelet coherence approach

Environmental sustainability is one of the most critical issues that require efficient environmental and economic policies in modern times. Advancements in renewables and green technologies contribute significantly to sustained long-term development without affecting environmental quality. Several studies focus on the association of carbon dioxide emissions (CO₂e) with economic variables. However, they ignored the impact of technological innovations and renewable energy consumption on CO₂e in developed countries. Therefore, this study examines the relationship between CO₂e, energy consumption, gross domestic product (GDP), renewable energy consumption, and technology innovations in G-7 countries by employing cross-sectionally augmented autoregressive distributed (CS-ARDL) lag and wavelet coherence techniques during 1990-2020. The results depict that GDP and renewable energy consumption are inversely related to CO₂e. A 1% increase in CO₂e will decrease GDP and renewable energy consumption by 0.459 and 0.172% in the long run and by 0.471 and 0.183% in the short run in G7 countries. Technology innovations negatively impact CO₂e in the short run while positively influencing it in the long run. Considering the advancements in green technologies in different energy-dependent and manufacturing sectors is crucial for a sustainable environment in the long run. Such initiatives ensure the effective use of energy sources by limiting CO₂e in the atmosphere. Moreover, the dynamic common correlated effects mean group model confirms the reliability and effectiveness of the CS-ARDL. The wavelet coherence approach revealed a causality relation between CO2e and technology innovation in Italy, Japan, the UK, and the USA during the study period.

The role of renewable energy consumption on environmental degradation in EU countries: do institutional quality, technological innovation, and GDP matter?

In the face of climate change and environmental degradation, reducing emission of greenhouse gases has become a key factor for environmental sustainability. Therefore, the present research is intended to explore the roles of renewable energy consumption, institutional quality, technological innovation, and GDP on carbon dioxide emissions in the 14 EU countries. In doing so, this study employed novel method of moments quantile regression (MMQR) using annual data from 2000 to 2019. Also, a number of other estimators were applied for robustness check including the fully modified ordinary least square (FMOLS), the dynamic ordinary least squares (DOLS), and the fixed effect ordinary least square (FE-OLS). The empirical findings indicate that renewable energy consumption significantly reduces CO₂ emissions across all quantiles (0.1-0.9). Furthermore, institutional quality and technological innovation improve environmental quality in 0.1-0.7 quantiles, although GDP enhances carbon emissions significantly in all quantiles. In addition, the FMOLS, DOLS, and FE-OLS results confirmed the MMQR results. The outcomes of this study suggest insights for the policymakers to mitigate carbon emissions through promoting innovative technologies for environmental protection and investing more in the development of renewable energy.

Asymmetric impact of renewable energy consumption and technological innovation on environmental degradation: designing an SDG framework for developed economy

Many European nations, including Spain, are having difficulties achieving their Sustainable Development Goals (SDGs) objectives. Resultantly, the current research discusses the development of an SDG framework for Spain, which can be utilized as a model for other EU nations. This research examines whether GDP growth, technological innovation, and energy sources (renewable and non-renewable) have any effect on CO₂ emissions utilizing data from 1980 to 2018. The study applied the non-linear ARDL (NARDL) to investigate these interrelations. The outcomes from the NARDL revealed that positive (negative) shocks in renewable energy improve environmental quality in Spain. Furthermore, positive (negative) shocks in technological innovation lead to a decrease (increase) in CO₂. Lastly, positive (negative) shocks in energy consumption lead to an increase (decrease) in CO_2. The results reveal that Spain is on the right path towards decarburization. This research has important policy ramifications for the policymakers and government of Spain as well as neighbouring countries.

Does technology innovation matter for environmental pollution? Testing the pollution halo/haven hypothesis for Asian countries

China's GDP grew 9% annually during the end of the twentieth century. This economic growth degrades China's ecology, making it the world's greatest polluter. This position forced China to invest in developing nations and to take advantage of low-cost labor and increased pollution quotas from the World Trade Organization (WTO) to meet sustainable development objectives without environmental harm. The significance of this study is, first, this study examines the influence of Chinese outward foreign direct investment, gross domestic product, trade openness, technological innovation, and energy consumption on carbon emissions in Asian countries (Turkey, Pakistan, the Philippines, Singapore, India, Indonesia, and Cambodia). Secondly, the panel autoregressive distributed lag cointegration (ARDL) technique was used on data from 2000 to 2020 to investigate the pollution halo/haven hypothesis and environmental Kuznets curve hypothesis for south Asian nations. This analysis demonstrated that Chinese outbound foreign direct investment increases carbon emissions and confirms the pollution halo concept. Except for India and Pakistan, these nations show a U-shaped link between Chinese foreign direct investment and carbon emissions. So, policy implications recommended by the results of this study are foreign direct investment inflows with modern and ecofriendly technological transfer and enhancement in labor, and conservational management practices will benefit emerging countries to attain their sustainable development goals.

Impact of urbanization, industrialization, electrification and renewable energy on the environment in BRICS: fresh evidence from novel CS-ARDL model

Increased demand for water, energy, infrastructure, and other natural resources has resulted from an increase in anthropocentric activities recently, which has led to climate change, land erosion, pollution growth, and a decline in biodiversity. During the period 1972-2021, the aim of this study is how industrialization, urbanization, and renewable energy affect the environment of five industrialized economies-Brazil, Russia, India, China, and South Africa (BRICS)-implemented. Concerning slope heterogeneity, cross-sectional dependence (CSD), and a mixture of I (0) and I (1) variables, this paper used a fresh panel technique known as cross-sectionally augmented autoregressive distributive lag (CS-ARDL). When it comes to protecting water, land, and forest resources while also lowering carbon emissions, the estimate of energy, urbanization, electrification, and industrialization is favorably substantial. The findings show that rising industrialization, urbanization, income, and electrification can stimulate environmental degradation. On the other hand, renewable energy in industrialized economies may significantly lessen the environmental degradation in the BRICS region. In the BRICS region recently, urbanization is booming, all countries are expanding industrial zones, and consumption of electricity is skyrocketing. So, this research is very important in the BRICS context. The research also applied an augmented mean group (AMG) to get the impact of all variables on the environment in all BRICS countries. Because of their different economic sizes, public policy, industrial policy, population policy, immigration, and trade policy, the magnitude of impacts and signs of impacts are different. There is some evidence to suggest that renewables may be a panacea for BRICS energy security and environmental deterioration; consequently, boosting alternative energy sources, green urbanization, and environmentally-friendly urbanization should be a part of all governments' energy and environmental plans worldwide. Hence, these countries' decision-makers should re-review their population, energy, urbanization, and industrial policies to adopt a sustainable environment.

Clean energy consumption and CO2 emissions: does China reduce some pollution burdens through environmental regulation?

Environmental regulations are considered a prerequisite for environmental performance. However, very limited studies have explored the asymmetric relationship between clean energy consumption, environmental regulation, and CO₂ emissions. This study scrutinizes the asymmetry phenomenon in environmental regulation-clean energy consumption and environmental quality nexus in China by using the time series nonlinear ARDL approach by covering the period 1993-2019. The result reveals that the impact of environmental regulation on clean energy consumption and CO₂ emissions is asymmetric. A positive change in environmental regulation has a positive effect on clean energy consumption but a negative impact on CO₂ emissions in the long run. While a negative change in environmental regulation has insignificant effects on clean energy consumption and CO₂ emissions in the long run. The study suggests that China should need to revisit environmental regulation policies that could help in improving environmental quality.

Determinants of load capacity factor in South Korea: does structural change matter?

By likening biocapacity and ecological footprint, the load capacity factor follows a specified ecological threshold, permitting for an in-depth analysis of ecological damage. It can be seen that as the load capacity factor is reduced, the ecological damage intensifies. Until now, scholars have used carbon dioxide, ecological footprint, nitrogen oxide, sulfur dioxide, and other indices to objectively examine ecological problems. The utilization of these metrics can cause the supply side of ecological concerns to be overlooked. To make up for this weakness, this paper evaluates the impact of structural change and trade globalization on the load capacity factor. The research also considers other drivers of load capacity factors such as economic growth and energy. We utilized the nonparametric such as nonparametric causality and quantile-on-quantile (QQ) regression approaches to scrutinize these interconnections for South Korea between 1970 and 2018. The findings from the QQ approach disclosed that in the majority of the quantiles, the influence of economic growth, structural change, energies (renewable and nonrenewable), and trade globalization mitigate the load capacity factor. Moreover, the nonparametric causality test divulged that in variance and mean, all the independent variables can predict the load capacity factor. Policy proposals for South Korea's sustainable development are offered based on the findings.

Financial Institutional and Market Deepening, and Environmental Quality Nexus: A Case Study in G-11 Economies Using CS-ARDL

This study presents a new insight into the dynamic relationship between financial institutional deepening (FID), financial deepening, financial market deepening (FMD), foreign direct investment (FDI), economic growth (GDP), population, and carbon dioxide emissions (CO2e) in the G-11 economies by employing a cross-sectionally augmented autoregressive distributed lag (CS-ARDL) approach during 1990-2019. The outcomes from the CS-ARDL and dynamic common correlated effects mean group (DCCEMG) models shows that financial deepening, GDP, FDI, and population degraded environmental quality both in the short run and the long run. Contrary to this, FID and FMD improves environmental quality in these countries. The government should work to maximize financial institutions (access, depth, efficiency) and financial markets (access, depth, efficiency) to reduce the CO2e. A strong positive and in-phase correlation of CO2e with economic growth and population is observed for G-11 countries. These results suggest policy makers should further improve financial institutions by creating opportunities for their populations. Moreover, the governments of G-11 countries should revise their foreign direct investment policies and attention should be given to import efficient means of energy production.

The assessment of environmental sustainability: The role of research and development in ASEAN countries

Considering the set targets of the Association of Southeast Asian Nations (ASEAN) to increase research and development (R&D) expenditures, this study probes the long-term and causal association between renewable energy (RE), nonrenewable energy (NRE), economic growth (GDP), and ecological footprints (EFs) in the context of the environmental Kuznets curve (EKC). Empirical evidence is based on the panel data throughout the period 1990-2016 for the selected six ASEAN economies. The Westerlund co-integration test confirms the long-run association between R&D, RE, NRE, GDP, and EF. The results of Fully Modified Ordinary Least Squares (FMOLS) and Dynamic Ordinary Least Squares (DOLS) confirm the presence of EKC and show that R&D expenditures lower EF significantly. A 1% increase in R&D and RE decreases EF by 0.01% and 0.27%, respectively. Moreover, a 1% increase in GDP and NRE increases EF by 5.52% and 0.17%, respectively. This means that investment in R&D will enhance air quality by lowering EF in estimated panel countries. Moreover, NRE consumption and GDP increase EF. The panel causality results confirm the bidirectional association between GDP, RE use, R&D expenditures, and EF. To achieve a desirable goal of a clean environment, R&D expenditures hold a strong position for ASEAN countries. This finding should encourage governments to involve public and private investments in R&D programs for energy efficiency. Integr Environ Assess Manag 2022;18:1313-1320. © 2021 SETAC.

Associating Renewable Energy, Globalization, Agriculture, and Ecological Footprints: Implications for Sustainable Environment in South Asian Countries

The main purpose of this work is to investigate the impacts of globalization (GL), renewable energy (RE), and value-added agriculture (AG) on ecological footprints (EF) and CO₂ emissions. For quantitative analysis, this research paper includes yearly data from 1990-2018 for four South Asian nations: Bangladesh, India, Pakistan, and Sri Lanka. These countries are most vulnerable to climate hazards and rapid economic transitions. The Westerlund test provides a strong association among the panel data. The findings of ordinary least squares (DOLS) and fully modified ordinary least squares (FMOLS) show that RE is lowering CO₂ emissions and EF in the long run. A 1% increase in RE results in a 10.55% and 2.08% CO₂ decrease in emissions and EF, respectively. Globalization and AG are contributing to environmental degradation in selected South Asian countries. Therefore, these countries need to exploit solar energy to its full capacity. Moreover, these countries need to explore more RE resources to reduce their dependence on non-RE sources. These countries can make their agricultural sectors sustainable by following efficient farming practices. Environmental awareness should be enhanced among the farmers. Farmers can use animal fertilizers and clean inputs in AG to achieve sustainable agricultural products. Overall, this work suggests that these countries can achieve a cleaner environment by adopting RE and by promoting efficient technologies through globalization.

Investigating the linkages of female employer, education expenditures, renewable energy, and CO2 emissions: application of CS-ARDL

This work investigates the impacts of female employers, renewable energy, and education expenditures on CO2 emission in Pakistan, India, Bangladesh, and Sri Lanka. The annual data of 1990-2020 has been analyzed to present the empirical results. This work uses cross-sectional autoregressive distributed lag (CS-ARDL) approach to know long- and short-run coefficient values. The findings reveal that 1% increase in female employers, renewable energy, and education expenditures will decrease 0.04%, 0.64%, and 0.03% CO2 emissions, respectively, in the long run, which means female employers, renewable energy, and education spending are useful for South Asian countries to lower environmental pollution. This means that increasing female employers, ratio of renewable energy, and education expenditures are very important for South Asian countries to lower environmental pollution. This work recommends that education spending is providing environmental awareness, which is compulsory for cleaner environment.

Analyzing the role of meteorological parameters and CO2 emissions towards crop production: empirical evidence from South Asian countries

It is need of the hour to investigate the impacts of climate parameters on agricultural production in a developing region of South Asia. Therefore, this work attempts to explore the climatic indicators on agricultural production for selected South Asian countries over the annual data of 1961-2016. This study estimates the impacts of rainfall, temperature, rural population, land under cereal production, and CO₂ emissions (ECO₂) on agricultural production. For empirical analysis, we applied second-generation unit root tests. After examining the order of integration of time series, we check for the co-integration among the variables. Before the co-integration test, we check for cross-section dependence among the variables. CD and LM tests confirm the existence of cross-section dependence. Afterward, we apply the Westerlund co-integration test to confirm the strong association among the variables. Further, we applied two methods for long-run coefficients of independent variables. Dynamic ordinary least square (DOLS) and fully modified ordinary least square (FMOLS) tests were applied to cross-check the findings. Our findings show that rural population and rainfall are negatively associated with agricultural production. Moreover, temperature, land area under cereal production, and ECO₂ are positively associated with agricultural production. Our findings shed light on some important policy implications for South Asian countries.

Can Financial Institutional Deepening and Renewable Energy Consumption Lower CO2 Emissions in G-10 Countries: Fresh Evidence from Advanced Methodologies

To tackle the challenges associated with global warming and climate change, several countries set their targets to lower carbon emissions in accordance with COP21 (Paris Conference). Even though studies highlighted the different aspects that contribute to environmental degradation, there still exists the scarcity of adequate research that emphasizes the environmental implications of financial institutional deepening, renewable energy consumption (REC), and technology innovations. Therefore, this study investigated the significance of financial institutional deepening, REC, gross domestic product (GDP), imports, exports, and technology innovations to achieve sustainability in G-10 countries, namely The Netherlands, Germany, France, Switzerland, United Kingdom, Sweden, Japan, Belgium, Canada, and Italy from 1990 to 2020. The results obtained from cross-sectionally augmented autoregressive distributed lag (CS-ARDL) and the dynamic common correlated effects mean group (DCCEMG) models reveal that financial institutional deepening and imports positively impact CO₂ emissions (CO₂e) both in the long and short run. A 1% increase in financial institutional deepening and import will increase CO₂e by 0.5403% and 0.2942% in the short run and 0.2980% and 0.1479% in the long run levels, respectively. Contrary to this, REC, GDP, exports, and technology innovations improve environmental quality in these countries. The Dumitrescu & Hurlin causality test shows bidirectional causality between imports and CO₂e, GDP and CO₂e, exports and CO₂e, and financial institutional deepening and CO₂e, compared to unidirectional causality from technology innovations to CO₂e and from REC to CO₂e. Apart from this, the outcomes suggest that policymakers in G-10 countries have to consider their financial markets and firms to revise their current environmental policies.

Environmental degradation and financial development: do institutional quality and human capital make a difference in G11 nations?

Developing nations are rushing towards economic developments; however, this development is increasing the ecological footprints. In this regard, it has become important to identify the factors of environmental degradation. For sound economic growth, countries are enhancing their human resources with sound financial institutions. Therefore, this work examines the effects of human capital (HC), financial development (FD), and institutional quality (IQ) on ecological footprints (EF) in the group of 11 countries. This work also checks the interactional effect of FD, human capital, and IQ on ecological footprints. This work employs the annual data of 1984-2017 and utilizes the cross-sectional autoregressive distributed lag approach for panel data analysis (CS-ARDL). The findings show that FD is degrading the environmental quality by 0.04%. Furthermore, IQ and HC are improving environmental quality by 0.07% and 0.01%. The findings also reveal that FD is lowering ecological footprints through the channel of HC and IQ. Based on the findings, these countries need to extend human capital with an efficient institutional network for environmental sustainability. These countries need to allocate funds to the health and education sector to develop human capital. Moreover, human resource management tools should be strengthened to cope with the challenges of environmental problems.

The anthropogenic consequences of energy consumption in the presence of uncertainties and complexities: evidence from World Bank income clusters

In environmental management, many studies have examined the energy consumption-emission nexus in detail. However, for the first time in the literature, this study considers how the Economic Complexity Index (ECI) and economic policy uncertainty (EPU) moderate the contribution of energy consumption to emissions for the four World Bank Income clusters. The system generalised methods of moments are applied to data for 109 countries from 1996 to 2016. Based on the main model (grouped clusters) estimations, the result revealed the existence of the environmental Kuznets curve (EKC) hypothesis. Also, an increase in air transport and consumption of energy releases more carbon emissions to the climate. Interestingly, ECI decreases carbon emission significantly while EPU does not have a significant impact. Moreover, the study revealed that ECI moderated the impact of other variables on emission, but EPU is not a significant moderator. Furthermore, a comparative analysis among the four incomes suggests that the EKC hypothesis holds only in the high-income clusters; ECI is a significant predictor of carbon emission in the four clusters, but it only decreases the emission in high-income clusters. This corroborates the debate on climate change and the productive capacity of high-income countries. Given the foregoing, several policy measures were recommended.

Does institutional quality affect air pollution?

As environmental pollution brings a series of problems to society and residential lives, how to effectively reduce air pollution and control climate change have become urgent problems. Since institutional quality is an important factor affecting air quality, we evaluated the causal relationship between them based on cross-country panel data from 2000 to 2016. We find that the improvement of institutional quality significantly reduces [Formula: see text], and this pollution reduction effect is obvious in high-income countries and in countries with common laws. Furthermore, under the components of institutional quality, the quality of government regulation, the degree of rule of law, corruption control, and government effectiveness have significant emission reduction effects. To explore how institutional quality affects air pollution, we perform mechanism analysis from the perspective of economic development, foreign trade, and technology progress. We further verify three environmental propositions including the Environmental Kuznets Curve, the Pollution Paradise Hypothesis, and Porter Hypothesis. Results show that the pollution reduction effect of institutional quality can be mediated by economic development rate, foreign direct investment, and technological progress. The Environmental Kuznets Curve exists, the Pollution Paradise Hypothesis is validated in countries with lower institutional quality level, and the improvement of the institutional quality can achieve the Porter Effect through technological progress.

Maximum power point tracking of PEMFC based on hybrid artificial bee colony algorithm with fuzzy control

Maximum power point tracking (MPPT) is an effective method to improve the power generation efficiency and power supply quality of a proton exchange membrane fuel cell (PEMFC). Due to the inherent nonlinear characteristics of PEMFC, conventional MPPT methods are often difficult to achieve a satisfactory control effect. Considering this, artificial bee colony algorithm combining fuzzy control (ABC-fuzzy) was proposed to construct a MPPT control scheme for PEMFC. The global optimization ability of ABC algorithm was used to approach the maximum power point of PEMFC and solve the problem of falling into local optimization, and fuzzy control was used to eliminate the problems of large overshoot and slow convergence speed of ABC algorithm. The testing results show that compared with perturb & observe algorithm, conductance increment and ABC methods, ABC-fuzzy method can make PEMFC obtain greater output power, faster regulation speed, smaller steady-state error, less oscillation and stronger anti-interference ability. The MPPT scheme based on ABC-fuzzy can effectively realize the maximum power output of PEMFC, and plays an important role in improving the service life and power supply efficiency of PEMFC.

Primal-dual approach to environmental Kuznets curve hypothesis: A demand and supply side analyses of environmental degradation

The unavoidable negative effects of global warming have been a key if not the most important issue occupying policy makers in the world at large today. The much talked about green economy nowadays seeks to achieve sustainable economic growth and development without compromising environmental quality. The relationship between environmental degradation and economic growth is largely explained by the environmental Kuznets curve (EKC) hypothesis. By employing the basic postulation of the baseline EKC framework, this study proposes and tests the existence of a dualistic approach of the EKC hypothesis. Geometry is used to illustrate the proposed dualistic model. Meanwhile, the novel dynamic common correlation effect econometric technique is employed to test the existence of the dualistic EKC within a panel of 109 countries from 1995 to 2016. The outcome from the estimated models shows that, in the global sample, the existence of the dualistic U-shaped and N-shaped EKC hypothesis is validated. When the sample is split into subsamples based on income levels, the U-shaped EKC hypothesis is validated for lower-income and high-income economies meanwhile, the N-shaped dualistic EKC is mostly associated with high-income economies.

Wind energy and CO2 emissions: AMG estimations for selected countries

This study analyzes the relationship between wind energy consumption, coal energy consumption, globalization, economic growth, and carbon emissions. Data from 37 countries for the period 2000-2019 are included in the analysis. To examine the long-term relationship between the variables, the AMG method, which considers the cross-section dependence and slope homogeneity, was used. According to the long-term coefficient estimates of the cointegrated variables, wind energy consumption has a statistically significant and negative effect on carbon emissions in the long run. For example, a 1% increase in wind energy consumption reduces carbon emissions by 0.018%. On the other hand, the variable of globalization has a statistically significant and positive effect on carbon emissions in the long run. A 1% increase in globalization increases carbon emissions by 0.107%. These findings show the importance of wind energy consumption in reducing carbon emissions.

The role of innovation investment and institutional quality on green total factor productivity: evidence from 46 countries along the "Belt and Road"

Based on the panel data of 46 countries in "Belt and Road" (B&R) from 2004 to 2016, this paper studies the impact of innovation investment and institutional quality on green total factor productivity (GTFP). Firstly, the ICRG database, World Bank WDI database, Traditional Foundation database, and Wind database are matched to obtain the balanced panel data of 46 countries along the B&R from 2004 to 2016. Secondly, the Malmquist-Luenberger index, which can be included in the unexpected output, is used to calculate the GTFP of countries along B&R. Thirdly, the evaluation system of national institutional quality of B&R is constructed from three dimensions (political institutional quality, economic institutional quality, and legal institutional quality), and the overall system quality of different countries is measured by entropy method. Finally, an empirical study is made on the relationship among innovation investment, institutional quality, and green total factor productivity. The results show that innovation investment has significantly promoted the GTFP of the B&R countries. It is worth noting that there is a non-linear relationship between innovation investment and GTFP in the B&R countries. With the improvement of overall system quality, political system quality, economic system quality, and legal system quality, the promotion effect of innovation investment on GTFP is further enhanced. In addition, the heterogeneity regression results show that the impact of innovation investment on GTFP is significantly heterogeneous in different regions of the B&R countries. Specifically, innovation investment has the greatest impact on GTFP in South Asia, followed by East Asia and Pacific, Europe and Central Asia, Middle East, and North Africa.

Biomass energy consumption and its impacts on ecological footprints: analyzing the role of globalization and natural resources in the framework of EKC in SAARC countries

Research scholars have diverted their attention towards the effect of biomass energy use on ecological footprints. Although recent research has investigated this association, the link between ecological footprints and biomass energy consumption has not provided consistent results. Therefore, this research attempts to fill the gap by examining the ecological footprints-biomass energy consumption nexus in the context of environmental Kuznets curve over the period of 1990-2016 in South Asian Association for Regional Corporation (SAARC) countries. Moreover, this work incorporates globalization, natural resources, and economic growth (GDP) for empirical analysis. In doing empirical analysis, we applied some econometric analysis to deal with the issue of cross-sectional dependence in the data. The outcomes of fully modified ordinary least squares and dynamic ordinary least squares estimations show that biomass energy consumption increases ecological footprints in SAARC countries. Moreover, globalization and GDP are also increasing ecological footprints. Environmental Kuznets curve cannot be validated in estimated countries. The Dumitrescu-Hurlin causality test confirms one-way causality from biomass energy usage to ecological footprints. On the base of empirical results, several policy implications are suggested for SAARC countries.

Do international collaborations in environmental-related technology development in the U.S. pay off in combating carbon dioxide emissions? Role of domestic environmental innovation, renewable energy consumption, and trade openness

Many economies are seeking new ways to improve environmental quality through international collaboration in environmental-related technology development (ICERTD). Cost reduction, green market penetration, and green technology development are central to global partnerships for sustainable development, even though no empirical study explains the ICERTD-carbon dioxide (CO₂) emissions nexus. The paper fills this knowledge gap in the environmental economics literature by examining the relationship between ICERTD and CO₂ emissions in the U.S. from 1990Q1 to 2018Q4 using domestic environmental innovation, trade openness, renewable energy consumption, and gross domestic product per capita as control variables. Fully modified ordinary least squares, dynamic ordinary least squares, and correlated component regression methods were employed for testing the long-run nexus among the variables. The present study revealed that (i) a long-run cointegration existed among ICERTD, domestic environmental innovation, trade openness, renewable energy consumption, gross domestic product per capita, and CO₂ emissions; (ii) ICERTD, domestic environmental innovation, and renewable energy consumption benefited the U.S. in lowering CO₂ emissions in the long run; and (iii) trade openness and gross domestic product per capita were positively associated with CO₂ emissions. This study recommends important policy recommendations for increasing ICERTD for decarbonization.

Renewable energy and foreign direct investment: does the governance matter for CO2 emissions? Application of CS-ARDL

Climate change is a global problem, and the policy-makers are trying their best to mitigate the impacts of drastic climate variability. Considering the mandate of Kyoto Protocol, this work investigates the individual and interactive impacts of renewable energy, economic growth, government effectiveness, and foreign investment towards carbon emissions in selected South Asian countries of India, Pakistan, Sri Lanka, and Bangladesh. The annual data of 1996-2019 has been analyzed by adopting advance methods. After confirming the cross-sectional dependence in the panel data, Westerlund cointegration test confirms the strong association of 1% level among the variables. Cross-sectional autoregressive distributed lag approach is employed to present long- and short-run coefficient values, which shows all data is having cross-sectional dependence at 1% level. Renewable energy and its interactive terms with government effectiveness and FDI are environmental friendly. A 1% increase in renewable energy is lowering CO2 emissions by 13.95%. Moreover, 1% increase in governance is reducing carbon emissions by 7.68%. This shows that these governments should integrate the FDI with renewable energy in the context of strict environmental policies. The attention should be on to generate more renewable energy. This can be done by importing latest technologies and to develop the domestic research and development expenditures.

The effect of technological innovation, FDI, and financial development on CO2 emission: evidence from the G8 countries

The nexus of foreign direct investment and economic growth has been extensively investigated by the researchers of environmental economics; however, few studies have been conducted to find the impact of financial development and technological innovation in the backdrop of the environment. In the G8 countries (UK, USA, Canada, Germany, France, Italy Russia, Japan), the rapid increase in urbanization resulting from their speedy economic growth has brought about a huge increase in energy consumption that is in turn responsible for contemporary environmental degradation. This research intends to find the impact of technological innovation, financial development, foreign direct investment, energy use, and urbanization on carbon emission in G8 member countries, based on data from 1990 to 2019. The findings present strong cross-sectional dependence within the panel countries. According to the FMLOS estimator, a statistically significant long-run and negative association with CO2 has been found between foreign direct investment, financial development, and technological innovation in G8 countries. A long-run bidirectional causality has been found among economic growth, financial development, urbanization, trade openness, CO2 emission, and energy use; antithetically there is unidirectional causality between carbon emission and foreign direct investment. A quality foreign direct investment is the present demand for the development of industries, technological innovation, and financial development for G8 countries. Furthermore, urbanization plays a major role in environmental degradation, and more improved policies are needed for these countries.

Effects of population structure on CO2 emissions in South Asian countries: evidence from panel estimation

The rapidly changing population structure in South Asian countries is observed to be linked with growing social, economic, and environmental problems. Therefore, to enhance current wave of knowledge, this research investigated the effect of population structure on CO₂ emissions in some selected South Asian countries (Pakistan, India, Bangladesh, Nepal) over the period of 1990-2016. The results showed that age structure is associated with CO₂ emissions in the long run in Pakistan, India, Bangladesh, and Nepal. In addition, age structure drives more CO₂ emissions in India than in any other countries. People with age less than 15 years and people with age more than 65 years are responsible for increasing CO₂ emissions in India. On the other hand, in Pakistan, people of age less than 15 years are responsible for reduction of CO₂ emissions in the long run. In Nepal, age group of young people (less than 15 years) exerts negative effects on CO₂ emissions. The governments of these countries need to put serious attention toward age structure in order to improve air quality.

Particulate matter (PM2.5) and diseases: an autoregressive distributed lag (ARDL) technique

Air pollution can be attributed to the reduction in visibility, less agricultural activity, more health issues, and long-term destruction to infrastructure. This paper aimed to examine the validity of association among the Particulate matter (PM_2.5) and number of acute upper respiratory infection (ARI) and Asthma (AS) patients using an autoregressive distributed lag (ARDL) approach. This ARDL model study was conducted in Lahore, Pakistan. We used monthly data of ARI and AS patients acquired from Directorate General Health Services Punjab and PM_2.5 from Air Visual-IQAir during the period January 2018-August 2019. ARDL bound testing technique was used to investigate the association between number of AS, ARI patients and PM_2.5. In the short run, the PM_2.5 has substantial positive impact on number of AS patients in Lahore. The values of short-run coefficient depicts that the association between PM_2.5 and ARI patients is stronger than AS. The effect of PM_2.5 on number of patients in short term is more than that in the long-term. For both AS and ARI, in the long run, PM_2.5 has negative impact on number of patients.

Transport energy consumption and carbon emissions: The role of urbanization towards environment in SAARC region

Most of the existing literature on environmental assessment has concentrated on the linkages between energy consumption and CO₂ emissions, and little attention has been paid to the association between transport energy consumption and CO₂ emissions, which cannot be underestimated. Therefore, the present study contributes to the literature on the sustainable transport sector and urban settlements in South Asian Association for Regional Cooperation (SAARC) countries through an analysis of annual data from 1996 to 2015. Two unit root tests revealed mixed orders of integration for all variables. The Kao cointegration test revealed a strong association among the variables. The panel mean group (PMG) estimator confirmed that urbanization and regulatory quality improve air quality in the SAARC region. Gross domestic product (GDP) and the use of transport energy lower air quality. Considering the role of transport energy use in increasing CO₂ emissions, this study provides some policy implications for the sustainable transport sector in SAARC countries. Integr Environ Assess Manag 2021;17:1286-1292. © 2021 SETAC.

A STIRPAT-based investigation on the role of economic growth, urbanization, and energy consumption in shaping a sustainable environment in the Mediterranean region

The Mediterranean region is highly vulnerable to undesired consequences of global warming triggered by industrialization, urbanization, and mostly fossil energy consumption. However, the region has also great renewable energy generation potential such as solar and wind, which enables countries in the region to considerably mitigate CO₂ emissions, the main driver of global warming. Developing countries around the world have less impact on carbon emissions than the developed Global North. Therefore, developing countries in the Mediterranean region are affected by the carbon burden of the first industrialized and developed European countries. This study investigates the role of economic growth, fossil and renewable energy consumption, and urbanization of developing Mediterranean countries in CO₂ emissions by using annual data covering 1995-2016 period. To this end, it follows a STIRPAT model including gross domestic product per capita, urbanization, and renewable and non-renewable energy consumption. Considering cross correlation among countries, panel data methodologies are employed to estimate how carbon emissions respond to increase in gross domestic product, urbanization, and disaggregated energy consumption. Empirical results reveal that gross domestic product and fossil energy increase CO₂ emissions; urbanization and renewable energy decrease CO₂ emissions.

Air pollution and hospitalization in megacities: empirical evidence from Pakistan

Air pollution has become a threat to human health in urban settlements, ultimately leading to negative impacts on overall economic system as well. Already developed nations and still developing countries both are at the risk of air pollution globally. In this scenario, this work aims to investigate the associations of asthma (AS) and acute upper respiratory infection (ARI) patients with satellite-based aerosol optical depth (AOD) and meteorological factors, i.e., relative humidity (RH), temperature (TEMP), and wind speed (WS). We applied second-generation unit root tests to provide empirical evidence. Two sets of unit root tests confirmed mix order of integration, and the other Westerlund co-integration test further showed strong linkages between estimated variables. Fully modified ordinary least square (FMOLS) and dynamic ordinary least square (DOLS) tests were applied, only to explore that TEMP and WS lower the number of AS and ARI patients, but RH and AOD increase the number of patients. Therefore, in accordance with these findings, our study provides some important policy instruments to improve the health status in megacities of Pakistan.

Is industrial pollution detrimental to public health? Evidence from the world's most industrialised countries

BACKGROUND

Industrial pollution is considered to be a detrimental factor for human health. This study, therefore, explores the link between health status and industrial pollution for the top 20 industrialised countries of the world.

METHODS

Crude death rate is used to represent health status and CO2 emissions from manufacturing industries and construction, and nitrous oxide emissions are considered to be indicators of industrial pollution. Using annual data of 60 years (1960-2019), an unbalanced panel data estimation method is followed where (Driscoll, J. C. et al. Rev Econ Stat, 80, 549-560, 1998) standard error technique is employed to deal with heteroscedasticity, autocorrelation and cross-sectional dependence problems.

RESULTS

The research findings indicate that industrial pollution arising from both variables has a detrimental impact on human health and significantly increases the death rate, while an increase in economic growth, number of physicians, urbanisation, sanitation facilities and schooling decreases the death rate.

CONCLUSIONS

Therefore, minimisation of industrial pollution should be the topmost policy agenda in these countries. All the findings are consistent theoretically, and have empirical implications as well. The policy implication of this study is that the mitigation of industrial pollution, considering other pertinent factors, should be addressed appropriately by enunciating effective policies to reduce the human death rate and improve health status in the studied panel countries.