Biofuels are indeed here to stay, but they are best when used to solve another problem. Otherwise, their water cost exceeds their fuel value. Weeds and wastes are what to make biofuels from, and they are available in plenty. I challenge you all to deplete the typha resource that is choking your continent( and water hyacinth lettuce and fern...). If you do, you will also get flooding and malaria and desertification under control.

That is good. I remember a revered leader in Mozambique to say that "water is in peoples's brains". So do biofuels. The conflict between ffod and energy in only apparent. Please check http://www.scientificamerican.com/article.cfm?id=grassoline-biofuels-beyond -corn. Maize, cassava and a lot of food crop have cellulose containers in their leaves, stalks, roots, etc not necessarily used or recognised as food. So you can eat AND produce biofuels with the same crop... I hope that in the future we move away this apparent conflict.