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Study suggests current levels of methane leakage would result in numerous decades of more rapid climate change from a shift to natural gas vehicles

Green Car Congress

Technology warming potential (TWP) for three sets of natural gas fuel-switching scenarios. (A) A TWP >1 means that the cumulative radiative forcing from choosing natural gas today is higher than a current fuel option after t yr. However, natural gas vehicles could produce climate benefits on all time frames if the well-to-wheels CH 4 leakage were capped at a level 45–70% below current estimates, the authors suggest.

EPA finalizes greenhouse gas standards for LDVs MY 2023-2026

Green Car Congress

The final program represents will reach a projected industry-wide target of 161 grams CO 2 /mile, or 40 miles per gallon value on fuel economy window stickers in 2026. Climate Change Emissions Market Background Regulations


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US EPA and NHTSA Jointly Propose New Fuel Economy and Greenhouse Gas Regulations for Vehicles

Green Car Congress

Greenhouse gas and fuel economy levels under the EPA NHTSA joint proposed rulemaking. The US Department of Transportation (DOT) National Highway Traffic Safety Administration (NHTSA) and the US Environmental Protection Agency (EPA) jointly proposed a rule establishing a national program that would improve vehicle fuel economy and reduce greenhouse gases. These standards would require them to meet an estimated combined average fuel economy level of 34.1

2009 190

EPA and NHTSA Issue Notice of Intent to Develop New Greenhouse Gas and Fuel Economy Standards for Light-Duty Vehicle Model Years 2017-2025; Proposal Expected by 30 Sep 2011

Green Car Congress

The US Department of Transportation’s (DOT) National Highway Traffic Safety Administration (NHTSA) and the US Environmental Protection Agency (EPA) issued a Notice of Intent (NOI) to begin developing new standards for greenhouse gases and fuel economy for light-duty vehicles for the 2017-2025 model years. Real-world CO 2 is typically 25% higher and real-world fuel economy is typically 20% lower than figures determined under test, the agencies noted.

2010 183

California Energy Commission Adopts $176M Green Transportation Plan

Green Car Congress

The Alternative and Renewable Fuels and Vehicle Technology Program’s Investment Plan allocates $176 million over the next two years to stimulate green transportation projects and encourage innovation to help meet the state’s aggressive climate change policies. The state is aggressively working to reduce greenhouse gas emissions by 80% below 1990 levels by 2050, decrease petroleum fuel use to 15% below 2003 levels by 2020, and increase alternative fuel use to 20% by 2020.

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IEA technology and policy reports outline paths to halving fuel used for combustion-engined road transport in less than 40 years

Green Car Congress

IEA fuel economy readiness index status, 2010. Two new reports—one on technology, the other on policy— released by the International Energy Agency (IEA) outline pathways to improve the fuel efficiency of combustion-engined road vehicles by 50% by the middle of the century, saving as much as four-fifths of current annual global oil consumption. Average fuel economy and new vehicles registrations, 2005 and 2008. Engines Fuel Efficiency Policy

2012 207

Using the PHEV (Plug-In Hybrid Electric Vehicle) to Transition Society Seamlessly and Profitably From Fossil Fuel to 100% Renewable Energy

Green Car Congress

The alternative-fuel car evolved to reduce exhaust emissions and other problems derived from burning fossil fuels. The PHEV (Plug-in Hybrid Electric Vehicle), a subset of the electric car, combines a primary electric motor with a much smaller back-up engine fueled with a hydrocarbon/biofuel mix. (In If PHEVs became the major form of transportation, the use of fossil fuels would be cut dramatically. How PHEV provides Smooth Transitions from fossil fuel to renewables.

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