Alternative to fossil fuels?

Bio-diesel is probably the most efficient currently, since the delivery system is already in place ( fueling stations ). It is only the near absence of cars which are designed to use it that hinders its becoming an actual replacement for gasoline/gasohol.

water,rubbish,electrics and soler power

The only one is hydrogen on demand cars from Japan. It's already in production. Water in and water vapor out. No pollution.

There is many alternatives to fossil fuels. The one I see standing out for auto at least is electricity produced thru green means like wind power, geothermal, or power from the sun. Most likely a combination of many sources will be needed to ween us off of fossil fuels.

Anything that can be burned or stored to create energy. The only reason none of these are used is because oil is big business, corrupt and pay off corrupt governments which is pretty much all government. Even the U.S.

everything

Biofuels or oil which is obtained from the Jatropha fruit.The seeds in this Fruit is 37% oil and do not produce very much carbon dioxide !!! It is already very commonly used in India .

drinking too much so that you cannot drive.

I would have to say algae diesel. Diesel engines already exist and can be purchased anywhere, and they get better mileage than a gas engine. The infrastructure is in place. Diesel pumps are in most gas stations. Algae creates oxygen when growing. This offsets the carbon produced when burning. Algae can be grown anywhere and use brackish water. The cost of building plants is far less than drilling for oil. The only downside is that the cost per gallon is high right now.