1995 年至 2015 年期间国际移民所产生的 CO 排放量。
CO Emissions Embodied in International Migration from 1995 to 2015.
机构信息
Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China.
State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China.
出版信息
Environ Sci Technol. 2020 Oct 6;54(19):12530-12538. doi: 10.1021/acs.est.0c04600. Epub 2020 Sep 10.
While present international CO mitigation agreements account for the impact of population composition and structure on emissions, the impact of international migration is overlooked. This study quantifies the CO footprint of international immigrants and reveals their non-negligible impacts on global CO emissions. Results show that the CO footprint of international immigrants has increased from 1.8 gigatonnes (Gt) in 1995 to 2.9 Gt in 2015. In 2015, the U.S. had the largest total and per capita CO emissions caused by international immigrants. Oceania and the Middle East are highlighted for their large portions of immigrant-caused CO emissions in total CO emissions (around 20%). Changes in the population and structure of global migration have kept increasing global CO emissions during 1995-2015, while the reduction of CO emission intensity helped offset global CO emissions. The global CO mitigation targets must consider the effects of global migration. Moreover, demand-side measures need to focus on major immigrant influx nations.
尽管目前的国际 CO 减排协议考虑了人口组成和结构对排放的影响，但忽视了国际移民的影响。本研究量化了国际移民的 CO 足迹，并揭示了他们对全球 CO 排放的不可忽视的影响。结果表明，国际移民的 CO 足迹从 1995 年的 1.8 亿吨增加到 2015 年的 2.9 亿吨。2015 年，美国因国际移民而产生的 CO 排放总量和人均 CO 排放均居世界首位。大洋洲和中东地区因国际移民造成的 CO 排放量在总 CO 排放量中占比很大（约 20%）而受到关注。1995 年至 2015 年期间，全球人口和迁移结构的变化使全球 CO 排放不断增加，而 CO 排放强度的降低有助于抵消全球 CO 排放。全球 CO 减排目标必须考虑到全球迁移的影响。此外，需求方措施需要侧重于主要的移民涌入国家。
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