Cash for clunkers----Under this transferable permit program, emission reduction credits can be earned by removing high-polluting vehicles from service and recycling them.

克隆尔斯现金——在这个许可转让的程序下，减排信用能够通过在它们的服务和循环中取消高排放车辆取得减排信用。

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While France complained that the commission had let makers of heavier, more polluting vehicles off too lightly by varying the emission target according to the weight of the car.

而法国却抱怨说，欧盟根据汽车重量不同制定的限排标准也不同，这样做就太轻易地放过了高污染的重型车辆。

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In 2008, London created its Low Emission Zone (LEZ) to encourage the most polluting heavy diesel vehicles driving in the city to become cleaner.

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Imagine a deal involving emission sources in China, which has some of the world's most polluting coal-fired power plants, and California, which is on a course to become one of the most stringently controlled states in carbon emissions.

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The low emission zone - which begins in February 2008 - aims to deter the most polluting vehicles from being driven in central London by imposing charges on lorries, coaches and buses that fail to meet low emission standards.

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