You won't yet see many "clean cars" on the road, but you can find plenty of them
on the World Wide Web.
Energy expert Amory Lovins and his Rocky Mountain Institute are promoting the
design for a lightweight, efficient "hypercar" at www.hypercar.com. He retools
the auto from the ground up, incorporating a hybrid-electric engine with an
ultralight body, aerodynamic design, and low-rolling-resistance tires.
To delve into the new world of fuel cells and find out how they may
revolutionize the way we drive, head to www.fuelcells.org.