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"New Diesels Cut Soot, Smog Over 90%

"For decades, diesel trucks and buses have spewed large amounts of soot, smog-causing gases and carcinogens into the air. But new diesel engines are more than 90 percent cleaner than a few years ago, far exceeding the emission reductions required by the U.S. Environmental Protection Agency, according to a new independent study released Thursday. Data show new diesel technologies are working even better than expected."

Marla Cone reports for Environmental Health News June 18, 2009

Source: Env. Health News, 06/19/2009