title: Advanced biofuels face an uncertain future.
authors.forename: Jeff
authors.initials: J
authors.lastname: Tollefson
mesh_terms: D001674:Bioelectric Energy Sources / Q000191:economics / Q000639:trends*; D002482:Cellulose / Q000378:metabolism; D000431:Ethanol / Q000737:chemistry / Q000191:economics; D017752:Greenhouse Effect; D035501:Uncertainty; D014481:United States; D014484:United States Environmental Protection Agency / Q000331:legislation & jurisprudence; D003313:Zea mays / Q000737:chemistry / Q000191:economics
chemical_list: D000431:Ethanol; D002482:Cellulose