Environmental Kuznets Curve: Empirical Relationship between Energy Consumption and Economic Growth in Upper-Middle-Income Regions of China.

Int J Environ Res Public Health · 2020 · PMC7579496 · PMID 32977687

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almost significantno p-value reported

During the 18 years from 2000 to 2017, it was almost significant at the level of 0.1, indicating that the results were affected by the spatial effect [ 22 ].

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a decreasing trendno p-value reported

an increasing trendno p-value reported

explored the impact of Malaysia’s urbanization process from 1970 to 2011 on CO 2 , and found that CO 2 first showed an increasing trend and then a decreasing trend with the development of urbanization, showing an inverted "U" curve [ 13 ].

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.