Related by context. Frequent words. (Click for all words.) 79 ethanol 74 biofuels 73 biofuel 70 cellulosic ethanol 69 renewable fuels 65 biodiesel 64 Ethanol 63 cellulosic 62 switchgrass 61 bio fuels 61 alternative fuels 60 bioenergy 59 Biofuel 58 biomass 57 fossil fuel 57 corn 57 Biofuels 56 bioethanol 54 Renewable Fuels Association 53 feedstocks 53 Biodiesel 52 corn crop 52 fossil fuels 51 feedstock 51 bio diesel 50 VeraSun 50 soybean 50 renewable energy 50 biotech crops 49 renewable 49 nitrogen fertilizer 49 carbon sequestration 49 renewables 49 genetically modified crops 48 Biomass 48 jatropha 48 coal gasification 48 tar sands 48 soybeans 46 cropland 46 carbon capture 46 soy 46 flex fuel 45 cellulose 45 cleaner burning 45 oilseed 45 corn syrup 45 agribusiness 45 corn soybeans 44 organic farming 44 sugar beets 44 glyphosate 44 oil sands 44 greenhouse gas 44 soybean crop 43 sugar beet 43 greenhouse gasses 43 GMOs 43 oilsands 43 diesel fuel 43 ag 43 CO2 43 Renewable energy 42 canola 42 sorghum 42 gasoline 42 refiners 42 Renewable 42 sugarcane 42 Jatropha 42 coal fired 42 greenhouse gases 42 alfalfa 42 liquid fuels 42 Monsanto 42 coal 42 tailpipe emissions 42 fertilizer 42 fuels 42 crops 41 Algae 41 renewable energies 41 Pacific Ethanol 41 high fructose corn 41 algae 41 GHG 41 palm oil 41 GMO 41 diesel 41 GHG emissions 41 Rentech 41 greenhouse emissions 41 greenhouse gas emissions 41 refineries 40 urea 40 fuel 40 low sulfur diesel 40 wind farms 40 organics 40 Corn Belt 40 atrazine