期刊
NATURE CLIMATE CHANGE
卷 7, 期 10, 页码 736-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/NCLIMATE3373
关键词
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资金
- NSF [PIRE-1243535]
- Tsinghua University Initiative Scientific Research Program [20121088096]
- National Science Foundation of China [21625701]
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [1444745] Funding Source: National Science Foundation
- Office Of Internatl Science &Engineering
- Office Of The Director [1243535] Funding Source: National Science Foundation
Cities offer unique strategies to reduce fossil fuel use through the exchange of energy and materials across homes, businesses, infrastructure and industries co-located in urban areas. However, the large-scale impact of such strategies has not been quantified. Using new models and data sets representing 637 Chinese cities, we find that such cross-sectoral strategies-enabled by compact urban design and circular economy policies-contribute an additional 15%-36% to national CO2 mitigation, compared to conventional single-sector strategies. As a co-benefit, similar to 25,500 to similar to 57,500 deaths annually are avoided from air pollution reduction. The benefits are highly variable across cities, ranging from < 1%-37% for CO2 emission reduction and < 1%-47% for avoided premature deaths. These results, using multi-scale, multi-sector physical systems modelling, identify cities with high carbon and health co-benefit potential and show that urban-industrial symbiosis is a significant carbon mitigation strategy, achievable with a combination of existing and advanced technologies in diverse city types.
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