The Alternative Energy

Every country in the world are thinking hard right now. The petroleum is going to vanish. What we will use as a fuel if petroleum is completely empty?
Maybe we can take an energy from the solar heat. The obstacle is it's difficult to apply it according to economical side (especially in my country, Indonesia). But this alternative energy is non-emission. That's the point!

In my country (Indonesia), my government decide to change petroleum with LPG as a fuel for household necessity. But in the conversion program, there is some (actually much) accident happen to the LPG user. Their LPG container was erupted. It cause by the container. The container is RUSTING! How can it be?
Actually some scientists from my country have develop a new fuel, from Ricinus communis's fruit. But I don't know why the government don't use it.
I think the government should use this new fuel, rather than use LPG that more expensive and dangerous. I hope that...
May GOD Bless US!