New ratings index could prove a breath of fresh AIR

Some of today’s gasoline and diesel cars offer impressive emissions performance, and if everybody drove these models, air quality and environmental concerns would be very different. However, separating out the clean vehicles from the dirty is not always straightforward. Some consumers are confused by different arguments about the balance between global warming and air quality, and the Dieselgate scandal has left others uncertain about the benefits and risks of modern diesels. The AIR (Allow Independent Road-testing) Alliance is designed to change that….

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