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For the first time in years, the discrepancy between passenger vehicle type-approval test results and in-use fuel consumption and carbon dioxide (CO2) emissions did not increase, indicating a...

In 2016, Sir Richard Branson, president of Virgin Atlantic Airways, announced that the Virgin Group would assist aviation start-up Boom in developing a new supersonic transport (SST) aircraft.  Boom...Boom Technologies' CEO claims the company's proposed supersonic aircraft's fuel burn will be on par with subsonic business-class travel. Will it?

Updated study shows fuel efficiency improving an average of 1% per year since 2014, less than industry goal. A study released today by the International Council on Clean Transportation (ICCT)found...

This paper provides a preliminary assessment of the environmental performance of new commercial supersonic transport aircraft (SST). Three U.S.-based startup companies are working to develop new SSTs...

The TRUE initiative seeks to supply cities with data regarding the real-world emissions of vehicle fleets, and equip them with technical information that can be used for strategic decision-making....

The ICCT commissioned the Institute for Internal Combustion Engines and Thermodynamics of the Graz University of Technology and the Center for Alternative Fuels, Engines, and Emissions at West...

The ICCT commissioned the Institute for Internal Combustion Engines and Thermodynamics of the Graz University of Technology (TU Graz) to conduct track and chassis dynamometer testing to determine the...

As we've pointed out in the past (for example, here and here), feebate systems can be an effective policy tool for promoting vehicle efficiency and reducing both fuel consumption and CO2 emissions....Feebate systems can be an effective policy tool for promoting vehicle efficiency. A change that France made recently to its feebate system illustrates the absolute best way to do things, while a look...

In the European Union, CO2 emissions from commercial vehicles grew much faster than from passenger vehicles from 1990 to 2014. Trucks and buses now produce about a quarter of CO2 emissions from road...