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China’s technological efforts to tackle climate change have lasted for many years. It is necessary to test the effect of these efforts with quantitative method. To be exact, whether and how China’s low-carbon technology innovation responds to climate change should be tested. Based on the 2004–2015 panel data of 30 provinces in China, we use the method of ESDA analyzing the spatial correlation of China’s low-carbon innovation technology. Furthermore, we use the spatial Durbin model empirically analyzing the spatial spillover effects. The results obtained are as follows: first, supply and demand of Chinese low-carbon innovation has some deviation in the spatial distribution. The low-carbon technology innovation as the supply factor shows the characteristics of expanding from the east to the west. Innovation in eastern China has always been the most active, but innovative activities in the middle and western China are gradually decreased. However, carbon emissions have the characteristics of moving westward, implying the change of technology demand different from technology supply. Second, China’s low-carbon innovation actively responds to the trend of climate change, indicating China’s technological efforts have paid off. However, the spatial spillover effects are not significant, showing that the efforts in each region of China still work for himself. Third, environmental regulation and market pull are important factors for low-carbon technology innovation. Among them, both supporting policy and inhibitory policy have significant impact on the local low-carbon technology innovation, but no significant spatial spillover effects. It shows that environmental policies in different regions are competitive and lack of demonstration effects. Economic growth and export as market pull have higher level of effect on low-carbon technology innovation for both local and adjacent areas. Some policy implications are proposed based on these results finally. 相似文献
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日本在循环社会和生态城市建设上的实践 总被引:7,自引:0,他引:7
文章重点介绍了近年来日本在循环社会和生态城市建设方面的实践,并试图探讨中国今后在生态城市建设上的发展方向。 相似文献
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基于全排列多边形图示法的生态城市评价——以上海市为例 总被引:1,自引:0,他引:1
生态城市的构建是可持续发展的必然要求,也是生态文明创建的重要内容。采用全排列多边形图示法对上海市2005~2014年的生态化程度进行综合评价,结果表明:(1)就绝对生态城市水平,2005~2014年上海市生态城市发展指数S总体上呈缓慢增长态势,但S值均介于[0.2,0.4]之间,处于较低水平,亟需加快该市生态建设步伐;(2)就相对生态城市水平,2005~2014年上海市先后经历了由低-低-中等-较高-高的变化过程,呈现不断趋好的态势;(3)2005~2014年上海市经济、社会、环境三大子系统的S值存在波动变化,总体上反映出上海市生态化程度处于较低水平。 相似文献
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This paper considers three questions concerning a low-carbon society. The first is the implication of a 50% reduction in greenhouse gases (GHGs) by 2050. In the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report, released in 2007 (IPCC 2007b; http://www.gtp89.dial.pipex.com/chpt.htm), the suggested limit of increase in average worldwide temperatures is 2–3°C above the current level, but is this consistent with a 50% reduction by 2050? Second, when a 50% reduction in global emissions is envisioned, what is the level of reduction needed in Japan? Should the 50% reduction be uniform for advanced industrial countries and developing countries, or differentiated based on a country’s emissions? Third, how feasible are emission reduction targets in Japan? Even if the emission reduction target set for each country takes into account climate change impact and equity, whether the target is technically, or socially and economically, acceptable is another matter. 相似文献
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高晨宇 《环境与可持续发展》2012,37(5):61-63
在全球变暖的趋势下,人们越来越重视碳排放问题,房地产业作为碳排放大户,履行节能减排、建筑低碳任务应首当其冲,本文从房地产项目的环评及其技术评估角度,论述了中国城市房地产项目建筑低碳化一般采取的措施和具体要求,探讨符合中国国情的城市低碳房地产发展的对策和建议。 相似文献
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Emission allowances are sometimes distributed for free in an early phase of a cap-and-trade scheme to reduce adverse effects on the profitability of firms. This paper investigates whether grandfathering can also be used to avert the relocation of firms to countries with lower carbon prices. We show that under certain conditions, relocation can be averted in the long run, even if the grandfathering scheme is phased out over time and immediate relocation is profitable in its absence. This requires that the permit price triggers sufficient investments into low-carbon technologies or abatement capital that create a lock-in effect which makes relocation unprofitable. 相似文献