Room for improvement in low carbon economies of G7 and BRICS countries based on the analysis of energy efficiency and environmental Kuznets curves
Room for improvement in low carbon economies of G7 and BRICS countries based on the analysis of energy efficiency and environmental Kuznets curves
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DOI：
10.1016/j.jclepro.2015.03.002
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发表时间：
2015-07
影响因子：
11.1
通讯作者：
Ming-Chung Chang
中科院分区：
文献类型：
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作者：
Ming-Chung Chang
当前大幅削减的碳排放导致全球变暖，气候变化带来经济损失、生态灭绝等一系列副作用。数据包络分析方法最近已用于环境估计。本研究的目的是引入一种新的数据包络分析方法，以提供环境改善建议。本研究通过能源效率和环境库兹涅茨曲线分析，衡量G7集团和金砖国家低碳经济的改进空间。主要发现如下：（i）G7集团的碳化值比2005年之前的金砖国家集团有更大的提升空间；但2005年以后，后者的碳化值比前者有更大的提升空间； (ii) 受到高碳经济适得其反影响的国家包括德国、意大利和南非； (iii) 数据期内，能源强度、排放强度、碳化值等3条环境库兹涅茨曲线不满足倒U型环境库兹涅茨曲线假设；相反，本研究中的三个环境库兹涅茨曲线都是 U 形的。
Carbon emissions, which are nowadays targeted for significant reduction, cause global warming, with climate change producing a series of side effects including economic losses and ecological extinction. The data envelopment analysis approach has recently been employed for environmental estimations. The target of this study is to introduce a new data envelopment analysis method in order to provide environmental improvement suggestions. This study measures the room for improvements in low carbon economies of G7 group and BRICS group based on the analysis of energy efficiency and environmental Kuznets curves. The main findings are as follows: (i) the G7 group has greater room for improvement in its carbonization value than the BRICS group before 2005; however, the latter has greater room for improvement in carbonization value than the former after 2005; (ii) countries with the backfire effect of a high carbon economy include Germany, Italy, and South Africa; (iii) during the data period, three environmental Kuznets curves – including energy intensity, emission intensity, and carbonization value – do not satisfy the environmental Kuznets curve hypothesis that the curves are inverted U-shaped; on the contrary, the three environmental Kuznets curves in this study are U-shaped.