Studies show that cars use significantly more fuel per kilometre than suggested by official test ratings. This publication presents an analysis of the fuel efficiency gap and examines technologies available that could reduce that gap and improve fuel economy. It examines such areas as engine and...

"The European Conference of Ministers of Transport has released a report that analyzes the gap between fuel efficiency certification test ratings and the actual on-road fuel efficiency of automobiles. The report also examines technologies available that could reduce that gap and improve fuel...

Emissions of pollutants from motor vehicles have been the focus of longstanding concerns for both governments and the public at large because of their impact on air quality and human health. More recently, emissions of greenhouse gases have been of growing concern because of their impacts on...

According to latest data from the OECD and the IEA, government support for the production and use of fossil fuels across 81 major economies totalled USD 351 billion in 2020, amounting to USD 183 billion across 50 OECD, G20, and Eastern Partnership economies. While the difficulty of reform is...

In the absence of strong government policies, the IEA projects that the worldwide use of oil in transport will nearly double between 2000 and 2030, leading to a similar increase in greenhouse gas emissions. Bio fuels, such as ethanol, bio diesel, and other liquid and gaseous fuels, could offer...