Environment Is Driving One of the Tiniest Cars in the World In Your Future? A minuscule car that folds up to just 60 inches, made by MIT's media lab, will be deployed in cities around the world for neighborly sharing. Jonathan Lerner
Environment Developing Smart Cars, Roads for a Greener Drive Even without fancy new cars or fuels, technology now motoring off the drawing board will help you take that lead foot off the accelerator and start driving green. Melinda Burns
Social Justice Making the Case for Carpool Lanes Research indicates that even underused carpool lanes have a smoothing effect on freeway traffic. Elisabeth Best
Economics A Costly Green Machine A new survey indicates broad interest, but not commitment, in purchasing an electric vehicle. Erik Hayden