The role of vehicle lifetime extensions of countries on global CO2 emissions
The role of vehicle lifetime extensions of countries on global CO2 emissions
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DOI：
10.1016/j.jclepro.2018.10.054
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发表时间：
2019-01-10
影响因子：
11.1
通讯作者：
Kagawa, Shigemi
中科院分区：
文献类型：
--
作者：
Nakamoto, Yuya;Nishijima, Daisuke;Kagawa, Shigemi
本文将单个国家汽车生命周期分析在空间上进行了扩展，将基于15国汽车寿命分布的15国汽车存量-流量模型与全球多地区投入产出分析相结合，提出了一种新的汽车生命周期分析方法。从结果来看，考虑到15个国家中有10个国家的车辆寿命短于15.8年的平均寿命：奥地利、加拿大、德国、法国、英国、爱尔兰、意大利、日本、韩国和荷兰，我们发现，通过将这10个国家的平均车辆寿命提高到15.8年的全球平均水平，减少了17 Mt-CO2-eq。从10个国家的碳足迹可以实现。此外，我们还发现，汽车寿命和燃油效率的变化对全球二氧化碳排放量的影响在汽车寿命较长和寿命较短的国家之间存在很大差异。(C)2018爱思唯尔有限公司版权所有。
This paper spatially extended the vehicle life-cycle analysis of a single country and developed a new method for vehicle life-cycle analysis by combining a 15-country automotive stock-flow model based on the 15-country automotive lifetime distribution with global multi-regional input-output analysis. From the results, considering that ten of the 15 countries had vehicle lifetimes shorter than the average of 15.8 years: Austria, Canada, Germany, France, the U.K., Ireland, Italy, Japan, South Korea, and the Netherlands, we found that by increasing the average vehicle lifetimes of these 10 countries to the global average of 15.8 years, a reduction of 17 Mt-CO2-eq. from the carbon footprint of the 10 countries could be achieved. In addition, we also revealed that roles of changes in vehicle lifetime and fuel efficiency on global CO2 emissions are vastly different between countries where vehicle lifetimes are longer and those where lifetimes are shorter. (C) 2018 Elsevier Ltd. All rights reserved.