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Belfer Center Study Concludes Reducing Car and Truck GHG Emissions Will Require Substantially Higher Fuel Prices; Income Tax Credits for Advanced Alt Fuel Vehicles Are Essentially Ineffective at Reducing Sector Emissions

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CO 2 emissions from transportation sector by scenario in the study. It also finds that, while relying on subsidies for electric or hybrid vehicles is politically attractive, it is an extremely expensive and ineffective way to significantly reduce greenhouse gas emissions in the near term. Source: Morrow et al. Click to enlarge.

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UC report to CalEPA outlines policy options to decarbonize California transportation by 2045

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A second study led by UC Santa Barbara was released simultaneously. The state funded the two studies through the 2019 Budget Act. The studies are designed to identify paths to slash transportation-related fossil fuel demand and emissions while also managing a strategic, responsible decline in transportation-related fossil fuel supply.

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MIT Energy Initiative report on transforming the US transportation system by 2050 to address climate challenges

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More research, development, and demonstration studies are needed to lay the foundation for such a long-term transformation. There are many options available for reducing the fuel, energy, and GHG emissions impacts of LDVs. Values normalized to standard naturally-aspirated gasoline engine vehicle.

MIT 150