You may not think that we will ever run out of OIL.!!! But what if we do? what products do manufactures depend on oil, and i think you will be suppressed take farming!!
Without oil they could not grow the crops too feed us all.
But even if oil remains in the ground, very soon it will cost to much to bring it to the surface.
Then how will we heat, our homes grow our food, and run our transport systems.
with Global warming and the need to reduce our Carbon footprint Now is the time too think of new ways to replace our dependence on OIL.