Image Gallery: Alternative Fuel Vehicles
Image Gallery: Alternative Fuel Vehicles

What are the alternatives to gasoline?

©iStockphoto.com/Jim Parkin

When gas prices rise, people's thoughts naturally jump to alternative fuel sources. Early adapters are already making the shift to hybrid cars, and eventually, we'll all be driving gasoline-free vehicles. Check out the articles in this roundup to learn all about the growing technology of alternative fuel.