Sacramento area drivers take the 'Car-Free Challenge'

Joan Edelstein of West Sacramento made a public vow last week. She will drive her car no more than 200 miles this month.

The go-green pledge puts her among a handful of Sacramentans who’ve announced similar intentions at the new “Car-Free Challenge” Web site

Just days in, however, Edelstein is learning an inconvenient truth about the movement to reduce driving.