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This update adds one new data source, for a total of 14, covering 16 years, eight countries, and approximately 1.1 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 2016.

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. 

Finds that for cars, the cost for meeting a 2025 target value of 70 g/km (as measured in the New European Driving Cycle - NEDC) is between 250 and 500 euros higher than would be the case in a footprint-based CO2 target system.


Overview of congestion-charging programs aimed in reducing motor-vehicle traffic: in-place systems in London, Singapore, and Stockholm; a 1980s pilot program and subsequent follow-on studies in Hong Kong; and a 2007 ICCT-sponsored study of Santa Clara County, California.

Publication: White paper

Policy-relevant guidance on black carbon, a solid particle emitted during incomplete combustion and a significant contributor to both climate change public health problems.

Publication: White paper

Identifies at least two carbon intensity metrics (g CO2/ATK for dedicated cargo planes and g CO2/ASK for dedicated passenger aircraft) suitable for use in establishing a CO2 standard for new commercial aircraft.

Publication: White paper

Distills best practices in heavy-duty emissions controls from the EU, U.S., and Japan into a single regulatory program suitable for adoption by interested countries.

Publication: White paper

An initial assessment of the current situation and regulatory environment for two- and three-wheeled vehicles, and options for control.

Publication: White paper

Use of high-sulfur fuels increases emissions and can cause important pollution control devices to fail. This analysis by ICCT and Tsinghua University found that a combination of fuel and vehicle standards will allow 1.5 million premature deaths to be avoided over 22 years, including 20,000 infant mortalities.

Publication: White paper

Addresses the need to reduce sulfur in transportation fuels and the benefits that can be realized in terms of total pollutant emissions.

Publication: White paper