title: Measuring Urban Carbon Footprint from Carbon Flows in the Global Supply Chain.
abstract: A global multiregional input-output (MRIO) model was built for eight Chinese cities to track their carbon flows. For in-depth understanding of urban carbon footprint from the perspectives of production, consumption, and trade balance, four kinds of footprints and four redefined measurement indicators were calculated. From the global supply chain, urban carbon inflows from Mainland China were larger than outflows, while the carbon outflows to European, principal North American countries and East Asia were much larger than inflows. With the rapid urbanization of China, Construction was the largest consumer and Utilities was the largest producer. Cities with higher consumption (such as Dalian, Tianjin, Shanghai, and Beijing) should change their consumption patterns, while cities with lower production efficiency (such as Dalian, Shanghai, Ningbo, and Chongqing) should improve their technology. The cities of net carbon consumption tended to transfer carbon emissions out of them by trading in carbon-intensive products, while the cities of net carbon production tended to produce carbon-intensive products for nonlocal consumers. Our results indicated that urban carbon abatement requires not only rational consumption and industrial symbiosis at the city level, but also tighter collaboration along all stages of the global supply chain.
authors.affiliation: Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences , Xiamen 361021, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Yuanchao
authors.initials: Y
authors.lastname: Hu
authors.affiliation: Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences , Xiamen 361021, China.|Energy Analysis and Environmental Impacts Department, Energy Technologies Area, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, MS 90R2002, Berkeley, California 94720, United States.
authors.forename: Jianyi
authors.initials: J
authors.lastname: Lin
authors.affiliation: Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences , Xiamen 361021, China.
authors.forename: Shenghui
authors.initials: S
authors.lastname: Cui
authors.affiliation: Energy Analysis and Environmental Impacts Department, Energy Technologies Area, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, MS 90R2002, Berkeley, California 94720, United States.
authors.forename: Nina Zheng
authors.initials: NZ
authors.lastname: Khanna
mesh_terms: D002244:Carbon; D058572:Carbon Footprint; D002681:China; D008962:Models, Theoretical; D014505:Urban Population; D014507:Urbanization
chemical_list: D002244:Carbon