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

Author(s):  
Chengde You ◽  
Shoukat Iqbal Khattak ◽  
Manzoor Ahmad
Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2668 ◽  
Author(s):  
Raúl Arango-Miranda ◽  
Robert Hausler ◽  
Rabindranarth Romero-Lopez ◽  
Mathias Glaus ◽  
Sara Ibarra-Zavaleta

Diverse factors may have an impact in carbon dioxide (CO2) emissions; thus, three main contributors, energy consumption, gross domestic product (GDP) and an exergy indicator are examined in this work. This study explores the relationship between economic growth and energy consumption by means of the hypothesis postulated for the Environmental Kuznets Curve (EKC). Panel data for ten countries, from 1971 to 2014 have been studied. Despite a wide gamma of research on the EKC, the role of an exergy variable has not been tested to find the EKC; for this reason, exergy analysis is proposed. Exergy analyses were performed to propose an exergetic indicator as a control variable and a comparative empirical study is developed to study a multivariable framework with the aim to detect correlations between them. High correlation between CO2, GDP, energy consumption, energy intensity and trade openness are observed, on the other hand not statistically significant values for trade openness and energy intensity. The results do not support the EKC hypothesis, however exergy intensity opens the door for future research once it proves to be a useful control variable. Exergy provides opportunities to analyze and implement energy and environmental policies in these countries, with the possibility to link exergy efficiencies and the use of renewables.


Author(s):  
Farzan YAHYA ◽  
Muhammad RAFIQ

Background: Air pollution is one of the major threats to human health and well-being. This study aimed to explore the effect of renewable energy consumption and carbon dioxide emissions on tuberculosis (TB) incidences. It further investigates the moderating role of urbanization on the relationship between underlying factors and TB. Methods: The data of 183 countries over the period 2000 to 2014 were collected and a two-step system GMM technique was utilized to reduce the endogeneity issue. Additionally, we divided the sample into two sub-panels based on country risk for more robust estimates. Results: Carbon dioxide emissions increase the incidences of TB while renewable energy consumption could restrict these cases. On the other hand, urbanization is positively associated with TB in high-risk. System-GMM estimates also indicated that urbanization further strengthens the positive association between CO2 emissions and tuberculosis. Conclusion: Climate-friendly energy technologies, surveillance, and adequate city planning can act as effective mechanisms to improve public health.


Author(s):  
Raúl Arango-Miranda ◽  
Robert Hausler ◽  
Rabindranarth Romero-Lopez ◽  
Mathias Glaus ◽  
Sara P. Ibarra-Zavaleta

Diverse factors may have an impact in Carbon dioxide (CO2) emissions; thus, three main contributors, energy consumption, exergy indicator and gross domestic product (GDP) are examined in this work. This study explores the relationship between economic growth and energy consumption by means of the hypothesis postulated for the Environmental Kuznets Curve (EKC). Panel data for 10 countries, from 1971 to 2014 have been studied. Despite all this wide gamma of research, the role of an exergy variable has not been tested to find the EKC; then exergy analysis is proposed. Exergy analyses were developed to propose an exergetic indicator as a control variable and a comparative empirical study is developed to study a multivariable framework with the aim to detect correlations between them. High correlation between CO2, GDP, energy consumption, energy intensity and trade openness are observed, conversely not statistically significant values for trade openness and energy intensity. The results do not support the EKC hypothesis, however exergy intensity opens the door for future research once it proves to be a useful control variable. Exergy provides opportunities to analyze and implement energy and environmental policies in these countries, with the possibility to link exergy efficiencies and the use of renewables.


Author(s):  
Ebru Çağlayan Akay ◽  
Raziya Abdiyeva ◽  
Zamira Oskonbaeva

Renewable energy plays a crucial role in increasing economic growth while reducing carbon dioxide emissions. The aim of this study is to examine the interaction between renewable energy consumption, economic growth and carbon dioxide emissions for selected Middle East and North Africa countries. For this aim, panel vector autoregression approach are used in the study. The annual data used in this study cover the period from 1988 to 2010 for Middle East and North Africa countries. Firstly, second generation unit root test are used to investigate stationarity properties of the variables and second generation panel cointegration test is applied to the data under consideration because of the cross-sectional dependence. Then a panel causality approach is proposed to examine the causal relationship between the variables. Finally, panel vector autoregression model, impulse-response and variance decomposition analysis are applied using generalized moment methods. The finding of this study shows that there is a bi-directional causality between growth and renewable energy consumption, which is consistent with the feedback hypothesis in terms of the energy consumption-growth nexus. It is found the evidence of unidirectional causality from carbon dioxide emissions to renewable energy consumption and from growth to carbon dioxide emissions. It is also found that the responses of growth to a shock of energy consumption are positive and the impact of renewable energy consumption on carbon dioxide emissions is negative.


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