What we know: the Volkswagen emissions test fraud scandal

Just one week ago Volkswagen was a company oozing confidence, the world's best-selling automaker with a global brand that appealed to car buyers seeking trustworthy German engineering at an affordable price.

Diesel vehicles save money over a period of years

Vehicles with clean diesel technology may be more expensive to buy or lease than those that run on gasoline, but they can save their owners thousands of dollars within just a few years, says a University of Michigan researcher.

Can propane school buses save money and provide other benefits?

School districts across the country are looking for ways to save money and be more environmentally sustainable. A new case study from the U.S. Department of Energy's Argonne National Laboratory that examines five school ...

2013 sees cleaner trucks and buses across EU

Under new European Union rules to combat pollution, trucks and buses rolling off assembly lines this year will produce significantly less harmful exhaust fumes.

'Gently does it' drives you further in electric vehicles

Drivers of petrol and diesel cars are usually aware that driving at high speed, harsh acceleration and hard braking all contribute to lowering their fuel economy. Scientists can readily explain in terms of the thermodynamics ...

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