Peaks of transportation CO2 emissions of 119 countries for sustainable development: Results from carbon Kuznets curve

Yu Zhang, Xi Chen, Ya Wu, Chenyang Shuai, Liyin Shen and Gui Ye

Sustainable Development, 2020, vol. 28, issue 4, 550-571

Abstract: Transportation has significantly boomed energy consumption and carbon dioxide (CO2) emissions. Understanding and forecasting the dynamic statuses of transportation CO2 emissions is a necessary step before making strategies to decrease CO2 emissions. Carbon Kuznets curve (CKC) hypothesis has been frequently validated properly to present the changing statuses of CO2 emissions in the literature. This study tests the CKC hypothesis using the data recording the CO2 emissions of transportation sectors of 119 countries over the period of 1995–2014, then turning points (TPs) are calculated for the countries where CKC hypothesis is turned out supported. Based on the CKC models, this study identifies different types of TPs, i.e. TP of carbon intensity (TPCI), TP of per capita CO2 emissions (TPPC), and TP of total CO2 emissions (TPTC) of the countries whose data support the CKC hypothesis. According to the earliness of the turning years (TYs) (TYCI, TYPC and TYTC) – the years when CO2 emissions peak – of individual countries, this study identified a step‐wise decoupling strategy for different countries, i.e. (1) first to reach the TPCI, (2) then to reach the TPPC, and (3) finally to reach the TPTC. As a result, the CKC hypothesis was supported by the data of 58 countries, among which, there are still seven countries having not reached any of the three TPs, 23 countries have reached the first‐step TP (TPCI), 9 countries have reached the second‐step TP (TPPC), and 19 countries have reached the third‐step TP (TPTC).

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:wly:sustdv:v:28:y:2020:i:4:p:550-571

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