Hyundai-Kia, Honda, Toyota Are America's Greenest Automakers, But All Are Improving

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A new study of America's top eight automakers finds Asian brands to be the greenest of the bunch, while Detroit brands earn the lowest marks. However, all eight companies have shown dramatic improvement, over the past decade and a half. The rankings come from the Union of Concerned Scientists, which describes itself as an alliance of over 400,000...

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