Future scenarios for energy consumption and carbon emissions due to demographic transitions in Chinese households

Biying Yu (), Yi-Ming Wei, Kei Gomi and Yuzuru Matsuoka
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Kei Gomi: National Institute for Environmental Studies Fukasaku 10-2
Yuzuru Matsuoka: Kyoto University C-cluster, Kyoto-Daigaku-Katsura

Nature Energy, 2018, vol. 3, issue 2, 109-118

Abstract: Abstract Population dynamics has been acknowledged as a key concern for projecting future emissions, partly because of the huge uncertainties related to human behaviour. However, the heterogeneous shifts of human behaviour in the process of demographic transition are not well explored when scrutinizing the impacts of population dynamics on carbon emissions. Here, we expand the existing population–economy–environment analytical structure to address the above limitations by representing the trend of demographic transitions to small-family and ageing society. We specifically accommodate for inter- and intra-life-stage variations in time allocation and consumption in the population rather than assuming a representative household, and take a less developed province, Sichuan, in China as the empirical context. Our results show that the demographic shift to small and ageing households will boost energy consumption and carbon emissions, driven by the joint variations in time-use and consumption patterns. Furthermore, biased pictures of changing emissions will emerge if the time effect is disregarded.

Date: 2018
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DOI: 10.1038/s41560-017-0053-4

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