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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.

This update adds two new data sources, for a total of 13, covering 15 years, six countries, and approximately 1 million cars. The analysis shows that, in the EU, the gap between official and real-world CO2 emission values continues to grow—from 9% in 2001 to 42% in 2015.

Under current regulatory standards, the wide commercialization of diesel cars would significantly increase NOX and PM2.5 emissions, contributing to poor air quality and adding 150,000 premature deaths through 2050. 

2017.06.23

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.

Publication: Report
2016.11.16

This update adds two new data sources, for a total of 13, covering 15 years, six countries, and approximately 1 million cars. The analysis shows that, in the EU, the gap between official and real-world CO2 emission values continues to grow—from 9% in 2001 to 42% in 2015.

Publication: White paper
2016.03.11

Under current regulatory standards, the wide commercialization of diesel cars would significantly increase NOX and PM2.5 emissions, contributing to poor air quality and adding 150,000 premature deaths through 2050. 

Publication: White paper
2015.10.28
The Republic of Korea's national strategy for green growth aims to make that country the world’s seventh largest green economic power
Blog Post
2015.09.24

This annual update to the L2R series analyzes eleven data sources covering fourteen years, six countries, and almost 600,000 vehicles. In the EU the gap between official and real-world vehicle CO2 emissions grew to 38 percent in 2014.

Publication: White paper
2014.12.03
Most governments of countries (or, in the case of the European Union, regions) with large auto markets regulate passenger vehicle fuel efficiency or CO2 emissions (essentially the same thing, since CO2 emissions are
Blog Post
2014.12.03

Compares dynamics of the most important driving cycles and their impacts on fuel consumption and CO2 emissions to produce an updated set of conversion factors for translating distance-based CO2 emissions among the different driving cycles.

Publication: White paper
2014.09.28

Extends an analysis of the gap between official and real-world fuel consumption and CO2 emissions for passenger cars in Europe, which reached 38% in 2013 and continues to grow at an accelerated pace.

Publication: White paper
2014.06.05
In coming weeks we’re going to be making some tweaks to our chart series comparing passenger vehicle fuel economy and greenhouse gas emissions standards worldwide
Blog Post

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