Related by context. Frequent words. (Click for all words.) 45 radioactive byproducts 44 Coal gasification 44 nonrenewable resource 44 Peter Gleick 43 Casey Lefkowitz 43 Edwin Lyman 43 Chameides 43 pollute waterways 42 EarthTalk 42 contaminate groundwater 42 pollute groundwater 41 radioactive waste 41 Institute WRI 41 Septic tanks 41 Environmental 41 Reprocessing 41 Vickie Patton 41 sequester carbon dioxide 41 desalinization plants 41 Radioactive waste 41 Matt Hartwig 41 Noah Horowitz 41 corrosives 41 carbon dioxide sequestration 40 Frank Maisano spokesman 40 breeder reactors 40 Myron Ebell 40 Nonproliferation Policy 40 Yucca Mountain Nev. 40 environmentalists 40 deplete oxygen 40 polluting waterways 40 decomposing organic 40 gasifying 40 environmentally beneficial 40 Carbon sequestration 40 headwater streams 40 environmental impacts 39 sequestration CCS 39 carbon sequestration 39 Bernadette Del Chiaro 39 dry casks 39 finite resource 39 Waste Isolation Pilot 39 flyash 39 coal ash 39 Biochar 39 Nevada Yucca Mountain 39 Philip Clapp 39 emit CO2 39 recharge groundwater 39 uranium tailings 39 geosequestration 39 Beyond Pesticides 38 pollute 38 fossil fuels 38 desalinate water 38 Chemical Weapons Working 38 Luke Popovich 38 Mountaintop removal 38 environmental 38 radioactive wastes 38 Environment CSE 38 By JEFF BARNARD 38 Daryl Kimball 38 agricultural residues 38 pollutes 38 Earthlife Africa 38 Fred Krupp 38 Fossil Fuels 38 depleted uranium DU 38 toxic pollutants 38 Hanford Site 38 Enriching uranium 38 Ecology 38 James Lovelock 38 Reverse osmosis 38 Chem Nuclear 38 groundwater aquifers 38 Stephan Singer 38 crop residues 38 Audra Parker 38 CarbonFree 38 Satinath Sarangi 37 Tyson Slocum 37 fracturing fluids 37 algae biofuels 37 environmentally 37 David Lochbaum 37 Paul Anastas 37 Environment 37 IGCC plants 37 odorless colorless gas 37 rainwater catchment 37 mercury emitted 37 contaminate drinking 37 Nuclear 37 Sustainably 37 fossil fuel 37 nuclear fission 37 fluorides