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by Katie Machol
It's clear that the American automakers need to step up their game in producing cleaner vehicles. Regardless, due to the ever-increasing push from state and federal emissions laws, they'll have to make efforts for further 'greening' of their fleets in the near future.
- Tags: Green Living, Green Living, emissions, honda, toyota prius, vehicles, cars, Union of Concerned Scientists, greenest automaker, fuel efficiency