The scalability of cellulosic ethanol (switchgrass, etc) as a good alternative to gasoline is currently a much debated topic. Consult various resources on this subject an report on the range of views about the total yield that is potentially available in this resource. Write up a 250 word consulting report on whether switchgrass or batteries should be our investment for a scalable transportation future. Reading this is a good place to start (Links to an external site.)Links to an external site. for general background but you should consult SEVERAL sources for your report.