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Formulating a robust low-carbon strategy has now been critical to achieving sustainable economic development amid broad carbon emissions across the BRIC region thanks to rapid industrialization and international trade growth. Developing such a strategy requires measuring actual sustainability performance from the energy, economy and ecological perspectives in this region. Therefore, this study explores the relationship among BRIC countries’ energy, economic and environmental sustainability performance by applying a common weight data envelopment analysis (DEA)-like composite indicator approach. The indicators encompass a comprehensive, latest, appropriate and applicable set of indicators. The results reveal that China and Brazil outperform against other underlined countries of the region in achieving sustainability with an overall index score of 0.96. India stands in ranking on second with a steady and unchanged score in the region, followed by South Africa and Russia, standing in ranking on fourth and fifth, respectively, in this study. Inclusive scores of both countries indicate the actual and robust possible potential for better sustainability performances in the region. This study proposes a policy by lifting the cross-border trade for renewable energy to achieve long-term environmental sustainability in the BRICS region.

The low carbon economy prompts urbanization to walk the road of sustainable development, and creating a health city is a long way to go. Based on the concept of low carbon and problems existing in the process of creating a health city, this article builds the four patterns of creating a health city, which is the collaborative model, the spiral model based on the four strategic platforms, the mode of driving the health city construction in culture, and mode of low carbon technology innovation and transformation. Lastly, the paper puts forward the countermeasures of creating a health city, firstly, unified understanding and strengthening leadership, secondly, set standards to promote standard, lastly, it is to intensify propaganda and citizen participation.

The development of the biogas industry in cities is of practical significance to the carbon economy. According to the current development situation of biogas in our country, the paper analyzed the necessity and urgency of biogas development in cities from social, economical and environmental aspects. Then, it proved the feasibility to popularize biogas from the aspects of technology, raw material and industrialization by learning advanced technology and practical experience from foreign countries. At last, it discussed the diversified development of biogas application in cities, providing a new idea for the low carbon economy and the construction of low-carbon cities of the nation.

In order to respond to the call of the national low-carbon travel, a new type of traffic pattern came into being, that is, P+R traffic model. This conversion mode can effectively reduce the road traffic pressure, reduce environmental pollution, improve the utilization rate of the road, to bring social, economic and environmental benefits to the city. This paper first puts forward the P+R traffic model, and then analyzes the factors that affect the environmental benefit of P+R mode, and then calculates the HC, CO and NO_X the reduction of P+R, P+R, and estimates the economic value of the two aspects of the parking lot.