Related by context. Frequent words. (Click for all words.) 52 microscopic bugs 50 saline aquifers 48 liquefy 47 deplete oxygen 46 liquefying 45 liquefied 45 oxidise 45 oilsands bitumen 45 radioactive byproducts 44 clog pores 44 liquify 44 reinjecting 44 irrigating crops 44 desalinization plants 43 peat pots 43 Sulphuric acid 43 halts uranium enrichment 43 permafrost thaws 43 Caspian Sea basin 43 Tar sands 43 reinjected 43 herbicides pesticides 43 gasifying 42 clathrates 42 gasify 42 rinse thoroughly 42 oil 41 chemically treated 41 petrochemical feedstock 41 reverse osmosis desalination 41 mineral ores 41 toxic residues 41 Siberian permafrost 41 reprocesses 41 Highly enriched uranium 41 bauxite ore 41 remove impurities 40 superheat 40 desalinated 40 spew radiation 40 Enriching uranium 40 viscous liquid 40 recharge groundwater 40 liquefies 40 ionize 40 oversupplying 40 large quantities 40 abrade 40 stoke inflationary pressures 40 Heat wok 40 photosynthesizing 39 enriched uranium stockpile 39 biodegrading 39 Kuan Yin Taiwan 39 transship 39 waxy substance 39 inorganic fertilizers 39 propellent 39 acidify 39 suctions 39 corrosives 39 chemical precursors 39 hydrocarbon reservoirs 39 tiny pores 39 nonrenewable resource 39 ultrapure 39 peat bogs 39 woody stems 39 photosynthesize 39 Fuel rods 39 reactants 39 Anhydrous ammonia 39 Melting glaciers 39 seeds germinate 39 reinjection 39 Septic tanks 39 depressurizing 39 cambium 39 purifying uranium 38 contaminate groundwater 38 Carefully pour 38 discolour 38 oxidizes 38 enriched uranium 38 Persian gulf 38 cullet 38 desalinate water 38 methane hydrate 38 liquefied gas 38 gas 38 artificial fertilizers 38 Radioactive material 38 kerogen 38 liquified 38 purify uranium 38 carbides 38 Tiny particles 38 adsorb 38 Treated sludge 38 contaminate 38 liquid evaporates