Everyone knows that the traditional source of fuel is declining in stock. Energy companies have begun to devise alternative or even replacement to the current petroleum-based fuel that we know. I list down in brief the fuels for the future thatwe might see in the next few decades. Mind you, some of them are already here, but not globally recognised yet.

One of these is the biofuel based on ethanol. Relatively easy produce, based on corns and plants, the most appealing characteristic of it is that it is reproducible, unlike petroleum. Some countries have begun using it for years, notably Brazil. Price maybe another issue as agricultural cost has risen over the years.

Another of these is the biodiesel fuel, which is based on vegetable oil and animal fats. It is clean, less carbon dioxide but more nitorgen oxide, which emits in the form of smoke. Cost-wise almost similar to the ethanol-based.

Electric-powered cars were also a consideration. Electricity is very clean, but more complex to be built. The best part of all this, is that cars can be used to power up houses and such, because it is using electricity. Power can also be stocked to the car in similar way as how you use other electrical appliances.

Hyrogen fuel has been long considered as an alternative. Relatively easy to produce, it is the most common element in the known universe. But, care must be taken into the implementation, as hydrogen is also highly combustible.

Two types of fuels that are radical but very promising are water and air fuel. Granted, these are the two that would probably be the top of my own list, being clean and reproducible. For water fuel, the best part is probably no gaseous emission other than clean, cold air, which would certainly cool our city streets.

Over the next few entrie, I will explain more on each of the fuels, I may even introduce new ones. Till then.