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Global baseline assessment of compliance and enforcement programs for vehicle emissions and energy efficiency

As vehicle pollution and fuel efficiency regulations have become more stringent, the technologies required to mitigate emissions and reduce fuel consumption become increasingly complex. One...
Published 2017.11.14: Publication

2017 Global update: Light-duty vehicle greenhouse gas and fuel economy standards

Global greenhouse gas (GHG) emission and fuel economy standards for light-duty vehicles (LDVs) have progressed significantly in a little more than a decade. Ten years ago, only four governments had...
Published 2017.06.23: Publication

Impacts and mitigation of excess diesel NOx emissions in 11 major vehicle markets

Access publication here: Nature, 25 May 2017, doi:10.1038/nature22086 Nitrogen oxide (NOx) emissions from diesel cars, trucks, and buses are a major contributor to air pollution-related deaths...
Published 2017.05.15: Publication

Impacts of world class vehicle efficiency and emissions regulations in select G20 countries

In 2014, the G20 Energy Efficiency Action Plan prioritized the establishment of a Transport Task Group (TTG) to promote cooperation among participating G20 countries to develop domestic policies that...
Published 2017.01.25: Publication

Improved heavy-duty vehicle fuel efficiency in India: Benefits, costs and environmental impacts

The main objectives of this analysis are to examine the benefits and costs of fuel-saving technologies for new heavy-duty vehicles (HDVs) in India over the next 10 years and, to explore how various...
Published 2017.01.20: Publication

Policies to reduce fuel consumption, air pollution, and carbon emissions from vehicles in G20 nations

The transport sector consumes more than half of global oil production, and releases nearly a quarter of all anthropogenic carbon dioxide emissions. Motor vehicles and engines contribute to ambient...
Published 2015.06.08: Publication

India's vehicle emissions control program

Rising transportation activity—the ever-increasing demand to move more people and goods further and faster—is both a cause and an effect of India’s rapid economic growth. As necessary as the increase...
Published 2013.11.05: Publication

The impact of vehicle and fuel standards on premature mortality and emissions

Technology-forcing regulations in the United States, European Union, and Japan have resulted in highly effective controls of tailpipe emissions. Advanced aftertreatment technology and engine tuning,...
Published 2013.11.04: Publication

Best practices in emission control of in-use heavy-duty diesel vehicles

This report summarizes policy approaches to controlling in-use emissions from heavy-duty vehicles (HDVs), including freight trucks, buses, municipal government and other service fleets. HDVs, while...
Published 2013.08.02: Publication

Global transportation energy and climate roadmap

This report evaluates the impact of transportation policies on worldwide oil consumption and greenhouse gas (GHG) emissions and the potential for reductions in both out to 2030. It finds that...
Published 2012.12.01: Publication

Estimated cost of emission reduction technologies for LDVs

The cost of meeting standards for conventional pollutant emissions is a perennial bone of contention in arguments over vehicle emission regulations. The public health benefits of the most stringent...
Published 2012.06.11: Publication

CNG bus emissions roadmap

In the 1990s, there were several motivations for an increased interest in the use of compressed natural gas (CNG) buses around the globe. However, the imposition of more stringent emission standards...
Published 2010.06.15: Publication

Managing motorcycles: Opportunities to reduce pollution and fuel use from two- and three-wheeled vehicles

For millions of people living in large cities in the developing world, two- and three-wheeled motorcycles offer convenient, affordable access to motorized transportation. Nowhere is this trend more...
Published 2009.10.09: Publication

Air Pollution and GHG Emissions from Oceangoing Ships

In a world of global supply chains and rapidly expanding trade, ocean shipping—currently the dominant mode of transport for international cargo—is becoming an increasingly important source of air...
Published 2007.03.07: Publication