An alternative sources of energy is always going on. Crude oil is getting scarce and many companies try to develop new alternatives like natural gas and ethanol. Ethanol has an agreeable odor and is a clear liquid. By the process of fermentation, corn, potatoes and wheat can all produce a starch that can become ethanol and when mixed with regular gasoline, it becomes gasohol.
This process is being researched and developed by energy companies that happen to be listed on the stock market. For over five years these companies have been a well known pick by savvy investors. While still initially costly, the public must wait for the availability to show its self. Much work still must be done in the development of other energy sources and that will be more of a priority as the fossil fuels are depleting faster and faster.
Not only will the technology companies be involved but the public as well can be a part of this development. The investment performance of alternative energy companies are not yet competitive like the established companies, but keep an eye on them, then will one day be up there with the big guys.