Hidden Benefits of Electric Vehicles for Addressing Climate Change

There is an increasingly hot debate on whether the replacement of conventional vehicles (CVs) by electric vehicles (EVs) should be delayed or accelerated since EVs require higher cost and cause more pollution than CVs in the manufacturing process. Here we reveal two hidden benefits of EVs for addres...

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Bibliographic Details
Published in:Scientific reports 2015-03, Vol.5 (1), p.9213, Article 9213
Main Authors: Li, Canbing, Cao, Yijia, Zhang, Mi, Wang, Jianhui, Liu, Jianguo, Shi, Haiqing, Geng, Yinghui
Format: Article
Language:English
Subjects:
704/106
704/172
Automobile industry
Carbon dioxide
Carbon dioxide emissions
Climate
Climate action
Climate change
Electric vehicles
ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
Energy consumption
Global climate
Heat
Humanities and Social Sciences
Manufacturing industry
multidisciplinary
Science
Urban heat islands
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Summary:There is an increasingly hot debate on whether the replacement of conventional vehicles (CVs) by electric vehicles (EVs) should be delayed or accelerated since EVs require higher cost and cause more pollution than CVs in the manufacturing process. Here we reveal two hidden benefits of EVs for addressing climate change to support the imperative acceleration of replacing CVs with EVs. As EVs emit much less heat than CVs within the same mileage, the replacement can mitigate urban heat island effect (UHIE) to reduce the energy consumption of air conditioners, benefitting local and global climates. To demonstrate these effects brought by the replacement of CVs by EVs, we take Beijing, China, as an example. EVs emit only 19.8% of the total heat emitted by CVs per mile. The replacement of CVs by EVs in 2012 could have mitigated the summer heat island intensity (HII) by about 0.94°C, reduced the amount of electricity consumed daily by air conditioners in buildings by 14.44 million kilowatt-hours (kWh) and reduced daily CO 2 emissions by 10,686 tonnes.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep09213