Photo: biofriendly , CC Reducing Air Pollution The last diesel bus in the 2,228 vehicle fleet of the Los Angeles County Metropolitan Transportation Authority (Metro) was recently retired, making Metro the first major transit agency in the world to operate only “alternative” fuel buses. They now have 2,221 compressed natural gas (CNG) buses, one electric, and six gasoline-electric hybrid buses. … Read the full story on TreeHugger
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L.A. Metro Retires Last Diesel Bus, Now Relies on Cleaner CNG Buses