The proportion of vehicles burning alternate fuel will be increased to help optimize the country's energy consumption.

Ketones can be used by the brain as an alternate fuel when glucose is scarce.

But Sweden has adopted a more conscious drive to sponsor alternate fuels for homes and cars.

Of the 4.2 million cars already on Sweden's roads, he said, fewer than 100,000 have been converted to use alternate fuels.

Despite all the political talk about energy research and alternate fuels, $4.4 billion would be cut from energy programs.

Cleaner-burning gasoline and possibly some alternate fuels seem likely to come sooner.

Perhaps you've even considered taking up green driving in a car or truck that runs on an alternate fuel?

First, however, let's define our alternate fuels set.

But first, let's discuss how alternate fuels are dispensed.

"We could set the thing up before alternate fuels were available in an area, and characterize the cars," he said.