The author returned from the recent TMC Annual Meeting with a wealth of information about different types of biofuels and their use. Scientists recently began to look at alternate fuels using life-cycle analysis (LCA). This means they will consider everything about each biofuel before they decide which technology is most beneficial to everyone. Corn-based ethanol, in particular, has a lot of trouble with LCA. Depending on the method of analysis, corn-based ethanol either decreases greenhouse gases (GHG) 20% or increases them as much as 90%. Ethanol produced from sugar cane reduces GHG two-and-a-half times better and ethanol produced from cellulosic (paper) sources four-and-a-half times more effectively than ethanol from corn.