13 research outputs found
Urban energy consumption and CO2 emissions in Beijing: current and future
This paper calculates the energy consumption and CO2 emissions of Beijing over 2005â2011 in light of the Beijingâs energy balance table and the carbon emission coefficients of IPCC. Furthermore, based on a series of energy conservation planning program issued in Beijing, the Long-range Energy Alternatives Planning System (LEAP)-BJ model is developed to study the energy consumption and CO2 emissions of Beijingâs six end-use sectors and the energy conversion sector over 2012â2030 under the BAU scenario and POL scenario. Some results are found in this research: (1) During 2005â2011, the energy consumption kept increasing, while the total CO2 emissions fluctuated obviously in 2008 and 2011. The energy structure and the industrial structure have been optimized to a certain extent. (2) If the policies are completely implemented, the POL scenario is projected to save 21.36 and 35.37 % of the total energy consumption and CO2 emissions than the BAU scenario during 2012 and 2030. (3) The POL scenario presents a more optimized energy structure compared with the BAU scenario, with the decrease of coal consumption and the increase of natural gas consumption. (4) The commerce and service sector and the energy conversion sector will become the largest contributor to energy consumption and CO2 emissions, respectively. The transport sector and the industrial sector are the two most potential sectors in energy savings and carbon reduction. In terms of subscenarios, the energy conservation in transport (TEC) is the most effective one. (5) The macroparameters, such as the GDP growth rate and the industrial structure, have great influence on the urban energy consumption and carbon emissions
Frequent interactions of Tibet's CO 2 emissions with those of other regions in China
Tibet is usually missing from China's emission accounts, especially from those of consumptionâbased emissions. In this study, we developed a multiâregional inputâoutput (MRIO) table for 31 provinces in China and examined the productionâ and consumptionâbased characteristics of Tibet's CO2 emissions in 2012. Results show that the consumptionâbased CO2 emissions in Tibet (18.8 Mt, similar to Guinea's emissions in 2015) were three times as high as the productionâbased estimate (6.2 Mt). Tibet displays unique emission patterns with the highest ratio of consumptionâ to productionâbased emissions in China, which are more similar with the east developed provinces rather than its counterparts in west China. More than half of Tibet's consumptionâbased emissions are supported by Qinghai, Hebei, Sichuan and others, enabled by the QinghaiâTibet railway that connected Tibet to China's national railway system. High carbon footprint but low life expectancy is found in Tibet, suggesting the emerging need of a more sustainable consumption pathway under the intensifying interregional connections by Belt and Road Initiative