'Clean' diesel cars may worsen air pollution
By Masaru Sagai | China Daily | Updated: 2008-12-04 07:53
With recent advances in diesel engine technology, Nissan Motor Co in September released Japan's first diesel-powered passenger car that meets the latest domestic emission control standards, to be implemented in 2009.
Positioning it as a "clean diesel car", the industry, environment and transport ministries and industrial organizations in July decided on a plan to promote sales of such environmentally friendly diesel-engine vehicles.
The promotional measures include providing subsidies to buyers and encouraging government offices to introduce such cars for official use. But are diesel-powered cars really clean?
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