期刊
NATURE GEOSCIENCE
卷 9, 期 10, 页码 790-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/NGEO2798
关键词
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资金
- National Natural Science Foundation of China (NSFC) [41422502, 41222036]
- 973 program [2014CB441303, 2014CB441301]
- World Wide Fund for Nature (WWF) [10010002399]
- Modeling, Analysis and Predictability (MAP) programme of the National Aeronautics and Space Administration (NASA) [08-MAP-0143]
- NSFC [41501605, 41328008]
- National Key RAMP
- D Program of China [2016YFA0602604]
- UK Economic and Social Research Council [ES/L016028/1]
- Natural Environment Research Council [NE/N00714X/1]
- ESRC [ES/L016028/1, ES/K006576/1] Funding Source: UKRI
- NERC [NE/N00714X/1] Funding Source: UKRI
- Economic and Social Research Council [ES/K006576/1, ES/L016028/1] Funding Source: researchfish
- Natural Environment Research Council [NE/N00714X/1] Funding Source: researchfish
International trade separates regions consuming goods and services from regions where goods and related aerosol pollution are produced. Yet the role of trade in aerosol climate forcing attributed to different regions has never been quantified. Here, we contrast the direct radiative forcing of aerosols related to regions' consumption of goods and services against the forcing due to emissions produced in each region. Aerosols assessed include black carbon, primary organic aerosol, and secondary inorganic aerosols, including sulfate, nitrate and ammonium. We find that global aerosol radiative forcing due to emissions produced in East Asia is much stronger than the forcing related to goods and services ultimately consumed in that region because of its large net export of emissions-intensive goods. The opposite is true for net importers such as Western Europe and North America: global radiative forcing related to consumption is much greater than the forcing due to emissions produced in these regions. Overall, trade is associated with a shift of radiative forcing from net importing to net exporting regions. Compared to greenhouse gases such as carbon dioxide, the short atmospheric lifetimes of aerosols cause large localized differences between consumption-and production-related radiative forcing. International efforts to reduce emissions in the exporting countries will help alleviate trade-related climate and health impacts of aerosols while lowering global emissions.
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