Co2 Emissions
Rouhollah Shahnazi; Ebrahim Hadian; Lotfollah Jargani
Volume 7, Issue 28 , September 2017, , Pages 51-70
Abstract
Although the trend of increase in energy consumption has made possible fast economic growth of industrial modern society, but because of combustion pollutants emission and increase in density of carbon dioxide in atmosphere has made irreversible changes in the world. Not only this trend is destroying ...
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Although the trend of increase in energy consumption has made possible fast economic growth of industrial modern society, but because of combustion pollutants emission and increase in density of carbon dioxide in atmosphere has made irreversible changes in the world. Not only this trend is destroying finite and nonrenewable energies, but also it is releasing numerous of pollutants into the receptive environment (air, water, and soil). In this article, existence of causality relation between energy carriers' consumption with economic growth and carbon dioxide gas emission in sectors of Iran's economy (residential, general and commercial, industry, agriculture, and transportation) in period of 1997 to 2012 using causality Toda and Yamamoto method has been studied. In the agriculture sector, results show a unidirectional causality relation of energy carrier consumption to economic growth. In transportation, residential, general and economic sectors existence of bidirectional causality relation of economic growth variable and carbon dioxide gas emission with energy carriers has been verified. In industry sector, a unidirectional causality relation of economic growth to gas, electricity to economic growth and bidirectional causality relation of coal exist. Also, there is a unidirectional causality relation of carbon dioxide emission to oil and bidirectional causality relation carbon dioxide gas emission to other variables except oil exist.
Quality of Environment
Majid Ahmadian; Ghahreman Abdoli; Farkhondeh Jebel Ameli; Mahmood Shabankhah; seyed adel khorasani
Volume 7, Issue 27 , July 2017, , Pages 17-28
Abstract
In recent decades environment has been an important issue more than any other time. Hence, this study investigated the relationship between economic growth and environmental quality indicator in selected developing countries (including 32 country) for the period 2002-2013 by using a dynamic panel method ...
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In recent decades environment has been an important issue more than any other time. Hence, this study investigated the relationship between economic growth and environmental quality indicator in selected developing countries (including 32 country) for the period 2002-2013 by using a dynamic panel method based on generalized method of moments (GMM). The results show that there is a positive and significant relationship between economics growth and degradation of environment (environmental quality degradation), which means that an increase in environment degradation indicator increased the economic growth. This case is because of the rate of resource depletion begins to exceed the rate of resource regeneration and Pollution Haven Hypothesis in the studied countries. The results of Sargen and Arellano-bond autocorrelation test also respectively show, there is correlation between tools and component disruption and model does not have autocorrelation in the first order difference. Meanwhile results of Toda and Yamamoto Causality test show the existence of unilateral relationship from the Environment Degradation indicator to Economic Growth.
