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.
Natural gas generators, as the name suggests, use natural gas -- which includes the propane used for backyard grills or the methane that utilities supply through underground lines -- to generate electricity.
You may have recently heard a certain oil company touting the fact that they sell nitrogen-enriched gasoline. But is nitrogen-enriched gasoline truly anything to get excited about? Does it really work?