Related by context. Frequent words. (Click for all words.) 67 cellulosic ethanol 64 biomass 64 bioenergy 63 cellulosic 62 corn ethanol 60 biofuels 60 biofuel 59 jatropha 58 alternative fuels 57 camelina 56 ethanol 56 carbon sequestration 55 biofuel crops 55 cellulose 55 feedstocks 54 biorefinery 54 biodiesel 54 wood chips 54 renewable fuels 53 Jatropha 53 biochar 53 grain sorghum 53 Biomass 52 sorghum 51 coal gasification 51 bio fuels 51 grasses 50 bio diesel 50 biorefineries 50 alfalfa 50 corn stalks 50 Biofuels 50 Biofuel 49 cornstalks 49 drought tolerant 48 milo 48 crops 48 native grasses 48 bioethanol 48 Bioenergy 48 feedstock 48 sugar cane 48 corn 47 corn crop 47 poplar 47 forages 46 lignin 46 synthetic fuels 46 corn soybeans 46 legumes 45 renewable 45 safflower 45 soy beans 45 wood pellets 45 sugar beets 45 Biodiesel 45 corn acreage 45 soybeans 45 legume 45 drought resistant 44 liquid fuels 44 distillers grains 44 kudzu 44 cropland 44 forage 44 sugarcane 44 bio ethanol 44 poultry litter 43 woody 43 Coskata 43 Ethanol 43 industrial hemp 43 silage 43 soybean 43 gasification 43 cobs 43 algae 43 cleaner burning 43 hybrids 43 carbon capture 42 Bt cotton 42 Renewable 42 fossil fuels 42 cattails 42 sunflowers 42 syngas 42 anaerobic digestion 42 grassland 42 cottonwood 42 oilseed rape 42 photosynthesis 42 Sorghum 42 mesquite 42 rangeland 42 fossil fuel 42 renewable energy 42 FutureGen 42 corn kernels 41 genetically modified crops 41 sagebrush 41 tillage