Study finds wider use of premium gas could save fuel, money

If the majority of light-duty vehicles in the United States ran on higher-octane gasoline, the automotive industry as a whole would reduce its carbon dioxide emissions by 35 million tons per year, saving up to $6 billion ...

'Greenroads' rates sustainable road projects (w/ Video)

Road construction is a more than $80 billion annual industry in the United States. Yet nothing comparable to the LEED rating system for buildings, or the Energy Star system for appliances, exists for highways and roads.

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