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Operational carbon transition in the megalopolises’ commercial buildings
Abstract Megalopolises are important political and economic centers and offer the best opportunities for decarbonizing commercial building operations. This study estimates the decarbonization level of commercial buildings from China's five major megalopolises (Jing-Jin-Ji, Yangtze River Delta, Pearl River Delta, Yangtze River Middle Reach, and Cheng-Yu) through the generalized Divisia index method, considering the impacts of socio-economy, technology evolution, and climate. Results found the following: First, economic growth effects [service industry added value (42.2%) and gross domestic product (36.5%)] and energy consumption (23.8%) were the main drivers of the spike in operational carbon emissions of the megalopolises from 2000 to 2018. Second, except for Cheng-Yu, operational carbon emissions were decoupled from economic growth effects since 2009, with the most significant decoupling status occurring in Jing-Jin-Ji, and technical effects being the main factor leading to the decoupling. Third, the five megalopolises cumulatively decarbonized 233.1 mega-tons of carbon dioxide (MtCO2), offsetting 4.4% of the operational carbon of commercial buildings, with the highest decarbonization level in Jing-Jin-Ji (5.7 MtCO2 per yr, 7.8 kg of carbon dioxide per square meter per yr, and 55.6 kg of carbon dioxide per capita per yr). Furthermore, current decarbonization strategies for megalopolises are reviewed to plan for future low-carbon developments. Overall, this study assesses the operational decarbonization change of commercial buildings in Chinese megalopolises. The findings help inform building of sector pathways toward China's carbon peaking and neutral goals and develop global low-carbon cities.
Graphical abstract Operational decarbonization change of commercial buildings in megalopolises and the share of decarbonization at different stages (2000–2018). Note: the bubbles on the map indicate total cumulative decarbonization from 2000 to 2018, and the error bands in the line graph indicate one standard deviation. Display Omitted
Highlights GDIM was used to investigate drivers, decoupling, and mitigation of operational carbon changes. The effects of economic development and energy use are key to increasing operational carbon. Operational carbon emissions decoupled from economic effects in most megalopolises since 2009. Decarbonization level in five megalopolises was 233.1 Mt, with a decarbonization efficiency of 4.4%. Deep decarbonization strategies for commercial building operations in megalopolises were reviewed.
Operational carbon transition in the megalopolises’ commercial buildings
Abstract Megalopolises are important political and economic centers and offer the best opportunities for decarbonizing commercial building operations. This study estimates the decarbonization level of commercial buildings from China's five major megalopolises (Jing-Jin-Ji, Yangtze River Delta, Pearl River Delta, Yangtze River Middle Reach, and Cheng-Yu) through the generalized Divisia index method, considering the impacts of socio-economy, technology evolution, and climate. Results found the following: First, economic growth effects [service industry added value (42.2%) and gross domestic product (36.5%)] and energy consumption (23.8%) were the main drivers of the spike in operational carbon emissions of the megalopolises from 2000 to 2018. Second, except for Cheng-Yu, operational carbon emissions were decoupled from economic growth effects since 2009, with the most significant decoupling status occurring in Jing-Jin-Ji, and technical effects being the main factor leading to the decoupling. Third, the five megalopolises cumulatively decarbonized 233.1 mega-tons of carbon dioxide (MtCO2), offsetting 4.4% of the operational carbon of commercial buildings, with the highest decarbonization level in Jing-Jin-Ji (5.7 MtCO2 per yr, 7.8 kg of carbon dioxide per square meter per yr, and 55.6 kg of carbon dioxide per capita per yr). Furthermore, current decarbonization strategies for megalopolises are reviewed to plan for future low-carbon developments. Overall, this study assesses the operational decarbonization change of commercial buildings in Chinese megalopolises. The findings help inform building of sector pathways toward China's carbon peaking and neutral goals and develop global low-carbon cities.
Graphical abstract Operational decarbonization change of commercial buildings in megalopolises and the share of decarbonization at different stages (2000–2018). Note: the bubbles on the map indicate total cumulative decarbonization from 2000 to 2018, and the error bands in the line graph indicate one standard deviation. Display Omitted
Highlights GDIM was used to investigate drivers, decoupling, and mitigation of operational carbon changes. The effects of economic development and energy use are key to increasing operational carbon. Operational carbon emissions decoupled from economic effects in most megalopolises since 2009. Decarbonization level in five megalopolises was 233.1 Mt, with a decarbonization efficiency of 4.4%. Deep decarbonization strategies for commercial building operations in megalopolises were reviewed.
Operational carbon transition in the megalopolises’ commercial buildings
Ma, Minda (author) / Feng, Wei (author) / Huo, Jingwen (author) / Xiang, Xiwang (author)
Building and Environment ; 226
2022-10-11
Article (Journal)
Electronic Resource
English
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