Related by context. Frequent words. (Click for all words.) 69 sequester carbon 60 sequestering carbon 59 carbon sequestration 58 carbon dioxide 56 absorb carbon dioxide 55 CO2 55 carbon dioxide CO2 53 Biochar 53 methane 52 Integrated Gasification Combined Cycle 52 sequestration 52 harmful pollutants 50 flue gases 50 CO ² 50 greenhouse gasses 49 heat trapping carbon dioxide 49 carbon emitted 49 carbon dioxide emitted 49 environmentally sound 48 biomass 48 coal gasification 48 geological formations 48 coal liquefaction 48 Carbon Dioxide 48 geologic formations 48 biochar 48 carbon dioxide emissions 48 gasification 47 economically viable 47 reduce carbon emissions 47 livestock manure 46 greenhouse gases 46 nutrient runoff 46 woody biomass 46 carbon capture 46 evaporation ponds 46 smokestack emissions 46 nitrous oxide emissions 46 greenhouse gas 46 dewater 46 environmentally benign 46 crop residues 46 nitrogen oxide emissions 46 methane gas 46 nitrogen fixation 46 gases emitted 46 carbon 45 carbon sinks 45 reduce greenhouse gas 45 methane hydrate 45 Switchgrass 45 soil conditioner 45 biomass feedstocks 45 contaminate groundwater 45 sequester 45 environmentally sensitive 45 nitrogen 45 Planting trees 45 renewable feedstocks 45 absorbing carbon dioxide 45 greenhouse gas GHG 44 biogenic 44 mercury emissions 44 environmentally friendly 44 Co2 44 conserve biodiversity 44 isoprene 44 pollute 44 environmentally harmful 44 particulate emissions 44 biomass feedstock 44 pollutants 44 polluted groundwater 44 photosynthesis 44 groundwater recharge 44 greenhouse gas emission reductions 44 fossil fuel 44 bioenergy 44 sulfur dioxide emissions 44 plasma gasification 44 coal gasification plant 44 emissions 44 GHGs 44 reinjection 43 polluted runoff 43 Gasification 43 naturally occurring bacteria 43 rice husks 43 switchgrass 43 N Viro Fuel 43 AM# WDBO encourages 43 Carbon dioxide 43 economically feasible 43 Alberta tar sands 43 contaminated sediments 43 fossil fuels 43 carbon emissions 43 lignite coal 43 remove impurities 43 carbon credits 43 harmful gases