How To Fuel Hydrogen Cars With Urine

The shower is well known as a source of good ideas. But the toilet? Equally promising, says Gerardine Botte, a professor of chemical and biomolecular engineering at Ohio University who has developed a technology to generate hydrogen fuel from urine.

Save 75% on Fuel Bills: Carpooling

Cut your carbs going to work. Carbon emissions, that is. Buddy up for your daily commute. If not every day, then even a once a week, carpooling can make a sizable difference.