A new study says air pollution from diesel is being underreported all over the world.

American cars aren’t as efficient as officially recorded, either.

It seems we’re still only scratching the surface of the effects of VW’s software cheating scandal.

Volkswagen’s cheating software could be installed in as many as 11 million vehicles. An already unprecedented disaster for the German car manufacturer just got a lot bigger.

The EPA charged Volkswagen with cheating on emissions testing. This problem is more common than you might think.