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Energy efficiency technologies for road vehicles

by Shigeki Kobayashi, Steven Plotkin, Suzana Kahn Ribeiro
Energy Efficiency ()
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Abstract A key message of the Fourth Assessment Report (AR4) of the Intergovernmental Panel on Climate Change is that improved energy\nefficiency is one of society’s most important instruments for combating climate change. This article reviews a range of energy\nefficiency measures in the transportation sector as discussed in AR4 and assess their potentials for improving fuel efficiency.\nThe primary focus is on light-duty vehicles because they represent the largest portion of world transport energy use and carbon\ndioxide emissions; freight trucks, a rapidly expanding source of greenhouse emissions, are also discussed. Increasing energy\nefficiency can be achieved by improving the design and technology used in new vehicles, but vehicle technology is only one\ncomponent of fleet fuel economy. Measures that create strong incentives for customers to take energy efficiency into consideration\nwhen buying and operating their vehicles will be crucial to policy success.

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