Is bio-fuel a good idea?

Bio fuel is more of a pollutant than petrol from what i can gather.There is a desperate race to find alternative fuels now as oil runs out and petrol and diesel will cease to be available.There will certainly be food and veg shortages as more farmers switch to seed etc. resulting in a tremendous rise in the cost of living.The industrial gas giant AIR PRODUCTS was experimenting and developing a hydrogen driven car along with several other companies,years ago,only water comes out of the exhaust,the only problem involved was the storage tankage.This should,by now, have been solved,only the big oil companies can be repressing the manufacture of this system in bulk.