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.
To make natural gas a viable fuel for vehicles, it must be compressed. This allows more fuel to be stored per volume, among other things. How much do you know about natural gas?
Since many popular biofuel crops are also commonly used as staple foods, critics of biofuel mass production warn that a spike in crop demand for biofuel could overload agricultural capacity. But is this a verifiable threat?