| Global climate change presents a significant challenge to achieving the Millennium Development Goals (MDGs)。There is now consensus that greenhouse gas emissions need to peak by 2015 to curb emissions to about 50 percent of their 1990 levels by 2050, to keep global warming below 2℃, and to avoid more dangerous and catastrophic climate change. In order to tackle climate change, a new concept called "low-carbon economy" which promote energy saving and emission reduction is becoming the new global trend. As the largest developing country, China is in the stage of rapid industrialization and urbanization. The contradiction of energy supply and demand and the problem of environmental degradation make China have to speed up to develop low-carbon. Low-carbon economy is an energy revolution based on the sustainable development. Energy efficiency is an important guarantee to develop the low-carbon economy.Nowadays, how to improve energy efficiency is the key content of low-carbon economy. For a long time, Chinese and foreign scholars are committed to research on energy efficiency:Firstly, with the definition of energy efficiency extends from the general concept to the broad concept, the indicators of energy efficiency have also been expanded, and energy intensity is the popular indicator; Secondly, in the process of exploring the factors affected energy efficiency, technical progress and industrial structure receive widespread attention; Thirdly, the study on the "return effect" lead to the effect of technology progress on energy saving becomes complicated.This paper mainly focus is to study the effective measures of improving energy efficiency and their roles in the development of low-carbon economy in order to explore a thought of the development of low-carbon economy based on energy efficiency. It is much important to the energy strategy and the development of low-carbon economy in China. This paper is divided into five chapters and follows that:Chapter one, introduction, it contains the background, object, meaning of this research and the logic structure of the full text.Chapter two, literature review, the difference and the deficiency of related research is pointed out through combing related scholar's research, and the basis thought of this paper is given.Chapter three, analysis of the relevance between energy efficiency and low-carbon economy, the relevance between low-economy and energy efficiency is studied by theoretical and empirical analysis, and the double effect of energy efficiency on reducing emission and promoting economic growth is pointed out, at last it concluded that energy efficiency is essential to develop low-carbon economy.Chapter four, analysis of the factors affected energy efficiency, the impact of technical progress and industrial structure adjustment on energy intensity change is identified by factors decomposition analysis, and it conclude that technical progress is the key factor affected energy efficiency, so the key way to improve energy efficiency is technical progress and industrial structure adjustment still has great potential.Chapter five, evaluation of the "rebound effect" of energy resource in China, the "rebound effect" in China is evaluated, and the conclusion that the energy-saving benefits from technical progress would suffer a certain degree of rebound is pointed out, therefore, technical progress and other energy policy must be combined. Finally, the thought of the development of low-carbon economy based on energy efficiency is given.Chapter six, conclusion, the main conclusions and policy suggestions are given.The contribution of this paper can be summed up as follows. Firstly, with the combination of qualitative and quantitative analysis methods, this paper does a more systematic exploration on how to develop low-carbon economy based on energy efficiency; Secondly, There is few literature on "rebound effect" in China, this paper improve the existing estimation model to evaluate and discuss the existence and level of the "rebound effect" in China. |
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