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Fuel consumption vs. fuel economy

Typically, countries that have been more concerned about energy security have chosen to regulate fuel consumption (l/100km) or fuel economy (km/l). Countries/regions more concerned about climate... The metrics of fuel consumption and greenhouse gas emissions have the advantage of being linear.
Published 2010.12.30: Blog Post

Chart of the day: Electric cars, 1860–2008

Trends in the occurrence of the phrase “electric car” in English-language books in the Google database since 1860.   Original Google Ngram is here. Trends in the occurrence of the phrase “electric car” in English-language books in the Google database since 1860.
Published 2010.12.29: Blog Post

CAFE data collection and verification

The United States has implemented the corporate average fuel economy regulation for light-duty vehicles for more than thirty years, with laudable enforcement. A sound data collection and...
Published 2010.12.21: Publication

Carbon intensity of crude oil in Europe

Globally, the extraction, transport, and refining of crude oil on average accounts for about 18% of well-to-wheels greenhouse gas emissions from fossil fuels—that is, the total emissions produced...
Published 2010.12.20: Publication

Notice of Intent, GHG and CAFE standards for MY 2017–25 LDVs

The U.S. EPA and National Highway Traffic Safety Administration (NHTSA) have jointly issued a Notice of Intent (NOI) to develop new greenhouse gas (GHG) emissions and corporate average fuel economy...
Published 2010.11.11: Publication

Proposed Emissions Standards for Two- and Three-Wheeled Vehicles in Europe

The European Commission has proposed new emissions standards for two- and three-wheeled powered vehicles and quadricycles, collectively termed L-category vehicles, as part of a broader regulation...
Published 2010.11.08: Publication

Aircraft efficiency metrics: Mass as a “What Is Transported” Term in Efficiency Standards

Recent ICAO deliberations have highlighted some of the tradeoffs faced by including or excluding aircraft and/or fuel mass in an aircraft efficiency metric. This paper, presented to the third CO2 TG...
Published 2010.10.07: Publication

Test cycles used to evaluate vehicle efficiency

A key component of a CAEP/9 CO2 certification requirement and standard will be the test point(s) used to evaluate the efficiency of aircraft. This paper, presented to the third CO2 TG meeting of the...
Published 2010.10.07: Publication

EU member states ILUC workshop

On 20 September 2010, the ICCT held a workshop for European national officials in Brussels on the EU Commission’s ongoing indirect land use change consultation. The consultation is asking whether the...
Published 2010.09.20: Event

Comments on the European Commission Directorate-General for Energy Indirect Land Use Change Literature Review

One of the four consultation documents  published by the European Commission to inform its 2010 consultation on indirect land use change is a literature review by the Commission’s Directorate-...
Published 2010.09.17: Publication

Size or Mass? The Technical Rationale for Selecting Size as an Attribute for Vehicle Efficiency Standards

Vehicle efficiency standards defined by governments worldwide are indexed to either size or weight, setting less stringent targets for larger or heavier vehicles so as to reduce competitive impacts...
Published 2010.08.04: 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

Two- and three-wheelers in India

  India, like other developing countries, is characterized by a rising population, mounting urbanization and motorization, and low per capita income. As Indian cities have grown in population, they...
Published 2010.06.10: Publication

Congestion Charging: Challenges and Opportunities

This report summarizes several actual and potential congestion-charging programs aimed in reducing motor-vehicle traffic. The study notes many of the environmental and fiscal benefits such programs...
Published 2010.05.14: Publication

U.S. EPA Light-Duty Vehicle GHG and CAFE Standards for 2012–2016

On April 1, 2010, the U.S. Environmental Protection Agency and Department of Transportation finalized a new joint regulation for greenhouse gas (GHG) emissions and fuel economy for model year 2012–...
Published 2010.04.10: Publication

Best Practices for Feebate Program Design and Implementation

Governments around the world have imposed standards for fuel economy and CO2 emissions on new vehicles, in reaction both to transportation's role in forcing climate change and to the threat of oil...
Published 2010.04.10: Publication

U.S. EPA Renewable Fuel Standard 2

On February 3, 2010, the United States Environmental Protection Agency (EPA) finalized revisions to the National Renewable Fuel Standard. The new rule (RFS2), which incorporates changes mandated by...
Published 2010.04.02: Publication

An Assessment of Mass Reduction Opportunities for a 2017–2020 Model Year Vehicle Program

A study carried out by Lotus Engineering and released by the ICCT in April finds that, using existing or soon-to-be-available mainstream engineering techniques, automakers can reduce passenger-...
Published 2010.03.30: Publication

Trends in Aircraft Efficiency and Design Parameters

Developing an aircraft CO2 candidate metric and subsequent compliance assessment requires an understanding of practices and trends in aircraft design. Historically, fuel burn has been an important...
Published 2010.03.21: Publication

Climate Change Mitigation

The rapid growth of the global car fleet poses a tremendous challenge in our efforts to address global climate change. Vehicle numbers are predicted to triple worldwide by 2050, with over 80% of...
Published 2010.03.01: Event