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It is treu a diesel polutes more then benzine. But from the 100% of the total polution from al over the world only 6% is from road traffic. So is we all would drive 60mpg in a benzine car we could maybe manage 1% reduction. So a couple of diesels wont do much, and if they do more then 60 mpg, its not getting worse. They have to find something different then fossils to do much good. So i don't see p roblems why the whole cant drive 60 70+ mpg diesels. It still beats 15 mpg benzine cars in polution
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