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| 1 |
ID:
143400
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| Summary/Abstract |
We provide evidence of first increasing and then decreasing CO2 emission intensity as the degree of urban concentration increases, based on data from 25 provincial regions in China over the period 1998–2008. This evidence is consistent with the environmentally desirable urban concentration argument identified in recent literature. Our findings indicate the importance of the spatial organization of activities and people in addressing regional CO2 emissions.
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| 2 |
ID:
094245
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| Publication |
2010.
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| Summary/Abstract |
This paper attempts to discuss the CO2 emissions embodied in Sino-US international trade using a sector approach. Based on an input-output model established in this study, we quantify the impact of Sino-US international trade on national and global CO2 emissions. Our initial findings reveal that: In 2005, the US reduced 190.13 Mt CO2 emissions through the consumption of imported goods from China, while increasing global CO2 emissions by about 515.25 Mt. Similarly, China reduced 178.62 Mt CO2 emissions through the consumption of US goods, while reducing global CO2 emissions by 129.93 Mt. Sino-US international trade increased global CO2 emissions by 385.32 Mt as a whole, of which the Chemical, Fabricated Metal Products, Non-metallic Mineral Products and Transportation Equipment sectors contributed an 86.71% share. Therefore, we suggest that accelerating the adjustment of China's trade structure and export of US advanced technologies and experience related to clean production and energy efficiency to China as the way to reduce the negative impact of Sino-US trade on national and global CO2 emissions. This behavior should take into account the processing and manufacturing industries as a priority, especially the Chemical, Fabricated Metal Products, Non-metallic Mineral Products and Transportation Equipment sectors.
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| 3 |
ID:
183557
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| Summary/Abstract |
The Canary Islands power systems face environmental, economic, and social sustainability challenges. They heavily rely on imported fossil fuel for electricity generation; this leads to an increase in the Cost of Electricity (COE) and CO2 emission; a reduction can be made by utilizing more renewable energy sources (RES). This paper presents a comprehensive techno-economic assessment of increasing the RES utilization in Tenerife and Gran Canaria. Results illustrate that the least-cost RES penetration in each island exceeds 60% compared to 18.8% and 15.5% today. This implies a potential 58% reduction in CO2 emission intensity. The additional RES integration decreases the COE by 23.0% and 25.3% in Tenerife and Gran Canaria, respectively. The impact of imposing CO2 emission penalties is explored, results show a slight increase in the optimal RES capacity. Electrical Interconnection between both islands is also investigated, it is found to increase the optimal aggregate RES penetration beyond 70%, reduce COE by 30.3% and lower CO2 emission by 70%, compared to the current situation. Finally, the results obtained can support decision-makers to establish policies to help transform the energy system in islands into a more sustainable and reliable system using RES, energy storage, and energy exchange between islands.
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