Summarizes policies and actions that are expanding access to electric transportation in the United States and showcases several examples of equity-focused electric mobility practices that are encouraging their utilization more widely.
Survey-based summary of regulatory agencies' programs to monitor and enforce compliance with vehicle emission and fuel consumption standards.
Identifies 20 cities with the highest electric vehicle uptake through 2016 and examines the associated local policies, incentives, and infrastructure that have helped spur electric vehicle sales growth.
Investigates the gap between real-world and official CO2 emission values in the four largest vehicle markets in the world: China, the EU, Japan, and the United States. The analysis shows that the gap has increased in all markets since 2001.
Looks into the potential and challenges of commercial-scale alternative jet fuel (AJF) production and use based on United Airlines and AltAir’s experience including its challenges, successes, and lessons learned.
Assesses charging infrastructure deployment practices, challenges, and emerging best practices in major electric vehicle markets. Statistically analyzes the relationship between public charging and electric vehicle uptake at the metropolitan area level to better discern local infrastructure variation, practices, and circumstances.
Assesses zero-emission heavy-duty vehicle technologies to support decarbonization of the freight sector in the 2025–2030 timeframe. Synthesizes data from the research literature, demonstrations, and low-volume commercial trucks regarding their potential to deliver freight with zero tailpipe emissions. Analyzes the emerging technologies by their cost of ownership and life-cycle greenhouse gas emissions for China, Europe, and the United States.
An analysis of advanced biofuel policies and recommendations for improving the effectiveness of policy support for emerging low carbon fuel technologies.
Legal brief summarizing public access to vehicle emissions data in the EU and US.
Analyzes the benefits of establishing separate engine CO2 standards in addition to full-vehicle regulations to specifically drive improvements in heavy-duty engine efficiency. Outlines a possible pathway for the development and implementation of separate engine CO2 standards for heavy-duty vehicles within the regulatory framework of the European Union.
Evaluates well-to-wheel greenhouse gas emissions from soot-free urban transit bus types in 20 megacities.
Reveals that the efforts made by multiple Transport Task Group (TTG) countries to promote and support policies and programs—including stringent tailpipe emissions standards, fuel economy standards, low sulfur fuels, and green freight programs—are in good alignment with the long-term perspective and pathways of the Transport Task Group defined in the G20 Energy Efficiency Leading Programme.
A summary of the technology and policy landscape encompassed by the phrase "new mobility," and survey of considerations involved in ensuring that new mobility developments support and advance the goals of clean transportation.
Examines the link between soybean and rapeseed biodiesel and palm oil in light of a new study on substitution effects.
Assesses the U.S. electric vehicle market and the factors that are driving it. Catalogues electric vehicle promotion activities. Identifies best practice policies in the 50 most populous U.S. metropolitan areas. Conducts a statistical analysis to discern links between the promotion actions and electric vehicle uptake.
Highlights important innovations and trends in diesel engines and emission control systems, some of which were not considered when the 2025 CAFE and greenhouse gas standards were finalized, yet promise to improve diesel passenger vehicles’ cost-effectiveness, especially for larger classes.
Summarizes the key barriers that impede the adoption of fuel-saving technologies in the trucking sector and discusses some of the ways policymakers can combat them.
Examines how the greenhouse gas and fuel economy standards have changed over time, how the auto industry in different regions has reacted, and discusses how the standards may evolve in the future.
Evaluates options for integrating electric vehicles into U.S. and European efficiency regulations based on cost-effectiveness and emission-reduction implications.
Summarizes important features and experiences of successful retrofit program efforts primarily in the U.S. and Europe, and also highlights the range of retrofit technologies that have been successfully used to reduce exhaust emissions (including diesel particulate and NOX emissions) from older, existing on-road and off-road diesel engines.