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This report assesses progress in 2018 toward implementing the Climate and Clean Air Coalition's global strategy to introduce low-sulfur fuels and cleaner diesel vehicles.

An updated global inventory of black carbon emissions from the global shipping sector with several recommendations on how to reduce black carbon emissions from ships.

A statistical portrait of passenger car, light commercial, and heavy-duty vehicle fleets in the European Union from 2001 to 2016, with emphasis on vehicle technologies, fuel consumption, and emissions of greenhouse gases and other air pollutants.


A wide-ranging analysis of vehicle emissions control policies in China, evaluating successes to date and assessing potential for new vehicle and fuel standards, compliance monitoring, and impacts of advanced technologies and fuels.

Publication: Report

Assesses taxes and incentives applied to new private passenger vehicles by governments seeking to use fiscal policy to strengthen standards-based approaches to vehicle emissions regulation.

Publication: Report

Regulations to reduce GHG emissions are driving a flood of investment in industries and innovative technologies that fuel economic growth while attacking the global problem of inefficient use of expensive, polluting oil.

Publication: Report

The availability and low cost of natural gas, less stringent new engine emissions standards, and fuel sulfur levels that inhibit the use of the most advanced diesel engines all contribute to a continued high level of interest in CNG vehicles in many developing countries.

Publication: Report

Summarizes one of the most promising fiscal policy tools available to complement vehicle emissions standards: so-called feebate programs, in which more efficient vehicles receive rebates and less efficient vehicles are assessed fees.

Publication: Report

Final report of the California ETAAC Advanced Technology Sub-Group.

Publication: Report

Estimates the sales and activity-weighted efficiency of new jet aircraft from 1960 to 2008 to argue that fuel price has been an inconsistent driver of aircraft efficiency, and that an aircraft CO2 standard is most likely to reduce emissions if it applies to all newly built aircraft from current production lines, not just to new designs.

Publication: Report

An assessment of new and emerging technologies that could be phased in between 2012 and 2017 to reduce carbon dioxide emissions from long haul tractor-trailers by up to 50%. The report concludes that most of these measures would produce net savings over the life of a vehicle due to reduced fuel costs.

Publication: Report

In many cities around the world, two- and three-wheel vehicles are the main mode of personal and commercial transportation. Motorcycles are cheaper to own than cars and often more convenient to navigate on congested roadways. Unfortunately, emissions from two- and three-wheelers have long been uncontrolled. The explosive growth in motorcycle usage in Asian cities and around the world has resulted in a significant deterioration of urban air quality.

Publication: Report

Demonstrates a linear-model approach to estimating fuel economy in trucks and buses.

Publication: Report