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The EV Emissions Tool calculates CO2e emissions for plug-in hybrid and battery electric vehicles in the US by combining vehicle efficiency data from the EPA with regional electricity grid emissions data from eGrid and the GREET model. It accounts for both direct and indirect emissions, including fuel production and transport, but excludes emissions from vehicle manufacturing and disposal. The tool uses a 'sales-weighted' approach for national averages based on 2016-2021 registration and sales data.

The document analyzes proposed US heavy-duty vehicle standards for model years 2018–2029, noting they would reduce oil consumption by 550,000 barrels per day by 2035 and avoid 1 billion metric tons of emissions. However, the Union of Concerned Scientists (UCS) argues that a 40 percent reduction in fuel consumption is achievable by 2025, which would save an additional 200,000 barrels of oil per day and avoid 40 million metric tons of annual emissions compared to the government's 36 percent target for 2027.

The document examines the potential for mid-level ethanol blends (E25 to E40) to improve fuel efficiency and reduce greenhouse gas emissions in the U.S. transportation sector. It highlights that a significant portion of the existing vehicle fleet and fuel infrastructure can accommodate these blends with moderate costs. Research indicates that increasing ethanol content can enhance engine performance and that a nationwide E25 blend could reduce transportation GHG intensity by 5 to 9 percent.

The document examines the potential for mid-level ethanol blends (E25-E40) to serve as high-octane fuels, reducing GHG emissions and increasing efficiency for both existing and future internal combustion engines. It highlights that while infrastructure and 'blend wall' challenges exist, a significant portion of the current U.S. fleet—including 17.4 million FlexFuel Vehicles and 80% of cars newer than 2001 (for E15)—can accommodate higher blends. The text details the role of ethanol in preventing engine knock, the lifecycle GHG benefits of corn and cellulosic ethanol, and the DOE's Optima Initiative aiming to reduce petroleum consumption by 30% by 2030.

Oil shale is a mixture of minerals and kerogen that requires energy-intensive heating to produce oil, resulting in significantly higher greenhouse gas emissions than conventional oil. The document highlights that oil shale is largely commercially unviable and poses risks to air and groundwater, advocating for reduced oil consumption and fuel efficiency over the expansion of unconventional oil production.

Plug-in hybrid electric vehicles (PHEVs) combine internal combustion engines with electric motors and rechargeable batteries, allowing for extended all-electric driving and reduced global warming pollution. They operate in all-electric and hybrid modes, utilizing features like regenerative braking and idle-off to increase fuel efficiency. Unlike battery electric vehicles, PHEVs retain a combustion engine for when the battery is depleted, and unlike conventional hybrids, they can be recharged via an external power outlet.

The transport sector in Kenya, which accounts for approximately 10 per cent of GDP, is highly vulnerable to climate impacts such as flooding and sea level rise, while simultaneously contributing 10 per cent of national greenhouse gas emissions as of 2010. The document outlines specific physical risks to infrastructure, such as the warping of rail tracks from higher temperatures and damage to ports from storms, noting that the 1997-98 El Niño floods caused transport infrastructure damage of Ksh 62 billion. To mitigate emissions, which are projected to reach 19 per cent of total national emissions by 2030, the briefing recommends the 'avoid-shift-improve' approach, increasing fuel efficiency in vehicle fleets, and shifting freight from road to rail. It also highlights the potential and controversies surrounding biofuels in Kenya, specifically the 'food versus fuel' debate.

The document describes how hybrid vehicles combine internal combustion engines with electric motors and batteries to improve fuel efficiency and reduce pollution. It details specific features such as idle-off, regenerative braking, power assist, and electric-only drive, while contrasting plug-in hybrids with battery electric and hydrogen fuel cell vehicles.

The document argues that without major intervention, transportation carbon emissions will double by 2050. It identifies a combination of reduced passenger car demand, improved vehicle efficiency, increased electric vehicle adoption, and a decarbonized electricity grid (via renewables, nuclear, or CCS) as the necessary path to significant reductions. A case study based on a Spanish city with 360,000 inhabitants demonstrates that while modal shifts and fuel switches (like CNG or biodiesel) offer modest gains, the most aggressive reductions occur when these are paired with a transition to nuclear or CCS-equipped power generation.

The document analyzes how structural and regulatory inefficiencies in India's trucking industry, such as poor road quality and toll delays, exacerbate the impact of rising diesel prices. It finds that truck operators are largely 'price takers' unable to pass fuel cost increases to customers due to fierce competition and a dependence on brokers. To mitigate these impacts, the brief recommends short-term interventions like reducing toll waiting times and fixing minimum freight rates, alongside long-term structural reforms including computerized exchange networks and improved fuel efficiency standards.

The 'HALF THE OIL' plan outlines a pathway for the United States to halve its projected oil use by 2035. The strategy relies on two main pillars: efficiency (improving passenger and commercial vehicles, and retrofitting buildings) and innovation (scaling electric vehicles, cellulosic biofuels, and smart transportation systems). The plan argues that these steps will save billions of dollars, reduce pollution, and establish U.S. leadership in transportation technology.

The U.S. Highway Trust Fund (HTF), which relies on fuel taxes unchanged since 1993, faces insolvency due to rising costs and declining fuel consumption. The document argues that current funding is insufficient to maintain a state of good repair, citing a $112B annual funding gap. It evaluates several solutions, including indexing fuel taxes to inflation, increasing the per-gallon tax rate, implementing vehicle miles traveled (VMT) fees, or shifting to a fuel sales tax, while highlighting the interdependence of highway and transit systems for economic efficiency.

The Autocomposites Commercialization Launchpad seeks to assemble a manufacturing team to produce a carbon fiber composite part for a 2018 model year vehicle at a volume of 50,000 units per year. The report details investment challenges, technical hurdles related to part design and assembly, and a 10-step action plan to engage OEMs and scale production.

The report analyzes how the fragmented structure of India's trucking industry, dominated by small operators, makes it highly susceptible to diesel price hikes. It finds that fuel costs account for approximately 55-56% of total operating costs, yet operators are 'price takers' unable to pass these costs to customers due to fierce competition and dependence on brokers. The document recommends short-term measures like fixing minimum freight rates and reducing tollgate delays, alongside long-term structural reforms including improved vehicle fuel efficiency and the introduction of professional training and financing prerequisites.

The 'Half the Oil' plan proposes reducing U.S. oil use by 50% over 20 years, projecting annual oil spending cuts of $550 billion, the creation of over 1 million jobs, and the elimination of 2 billion metric tons of global warming emissions per year by 2035. The strategy focuses on improving fuel efficiency for passenger vehicles and heavy-duty trucks, expanding the adoption of electric vehicles (EVs), and implementing 'smart growth' urban planning to reduce vehicle miles traveled.

A fact sheet by the Union of Concerned Scientists highlighting the high cost of gasoline for US travelers during the 2013 Memorial Day weekend and the potential savings from federal fuel economy standards.

The 'Half the Oil' plan proposes reducing U.S. oil use by over 11 million barrels per day by 2035. This is to be achieved through efficiency gains in vehicles and buildings (saving nearly 8 million barrels per day) and innovations such as electric vehicles and biofuels (saving over 4 million barrels per day).

The report finds that while global economic impacts of market-based measures (MBMs) for international aviation and shipping are small, effects vary significantly by country. Small, remote island states dependent on air tourism, such as Samoa, face the highest GDP risks, while large economies like China and India experience minimal impacts. The study concludes that MBM revenues and increased demand for Clean Development Mechanism (CDM) offsets can be used to mitigate these undesired economic effects.

The document analyzes how money spent on gasoline is distributed among stakeholders, finding that the majority goes to oil companies rather than local stations or the consumers themselves. It argues that drivers can save thousands of dollars over a vehicle's lifetime by choosing fuel-efficient or hybrid vehicles instead of continuing to fund oil company profits.

The report argues that instead of risky whole-vehicle redesigns, the automotive industry should adopt carbon fiber composites starting with specific high-value parts and subassemblies. It identifies promising candidates such as door inners, engine cradles, and seats, noting that while these parts cost significantly more than steel counterparts, the value from weight reduction and fuel savings can make them cost-competitive. The document outlines technical gaps in material characterization, predictive modeling, and fiber cost, and recommends the creation of a 'Parts Campaign' and an 'Innovation Hub' to coordinate efforts between industry, government, and academia.