Related by context. Frequent words. (Click for all words.) 78 biomass 66 Biomass 66 switchgrass 66 bioenergy 62 wood pellets 61 wood chips 60 cellulosic 59 cellulosic ethanol 58 feedstocks 56 biofuel 56 corn ethanol 55 biodiesel 55 biorefinery 54 renewable fuels 54 biofuels 54 carbon sequestration 54 renewable 54 woodchips 53 gasification 53 feedstock 52 renewable energy 52 ethanol 51 syngas 51 alternative fuels 51 fossil fuel 51 liquid fuels 51 cellulose 50 coal gasification 50 fossil fuels 50 hardwoods 49 bio fuels 49 bio diesel 49 biogas 48 Renewable 48 renewables 48 anaerobic digestion 48 forestlands 48 Bioenergy 47 lignite 47 wood 47 camelina 47 cogeneration 46 timberland 46 synthetic fuels 46 bioethanol 46 carbon credits 46 carbon capture 45 timber 45 Biodiesel 45 cleaner fuels 45 cleaner burning 45 jatropha 45 coal 45 Biofuels 45 forestland 44 timberlands 44 cobs 44 Douglas fir 44 poplar 44 conifers 44 forests 43 briquettes 43 Biofuel 43 alternative energies 43 carbon 43 biosolids 43 Renewables 43 geothermal 43 Renewable Energy 43 foresters 43 native grasses 43 timber harvesting 43 Renewable Energy Laboratory 42 baseload 42 compost 42 Jatropha 42 boilers 42 bioplastics 42 firewood 42 locally grown 42 lignin 42 BTUs 42 poultry litter 42 Geothermal 42 digester 42 fuels 42 bio ethanol 42 Renewable energy 42 CO2 41 renewable energies 41 natural gas 41 wood stoves 41 silage 41 pine beetle 41 wind farms 41 woodlands 40 BioEnergy 40 rangeland 40 coal combustion 40 watersheds 40 industrial hemp