Environmentalists have spent years clamoring for vehicles that won't add tons of carbon dioxide and other pollutants to the air every year. So-called "clean cars" will be on the market soon from two major manufacturers. A panel talks about what they'll be like, how they'll work, and their potential for reducing air pollution.
automotive writer and "On Wheels" columnist for The Washington Post
author of "Forward Drive" (Sierra Club) and editor of "E: The Environmental Magazine"
editor-in-chief of Car and Driver magazine