Related by context. Frequent words. (Click for all words.) 61 peat bog 59 peatland 59 peatlands 57 permafrost 56 grassland 55 woodlands 52 grasslands 51 forests 51 woodland 51 uplands 50 heathland 50 soils 50 vegetation 49 boreal forest 48 pine forests 48 tundra 48 hardwood forests 48 forest ecosystems 47 boreal 47 moorland 47 meltwater 47 poplar trees 47 glaciers 47 Arctic tundra 46 carbon sinks 46 wetland 46 aquifers 46 tropical forests 46 conifers 46 sediments 45 meadows 45 geological formations 45 mosses 45 wetlands 45 poplars 45 lichens 45 lakes 45 hardwood trees 45 overgrazing 44 woody plants 44 croplands 44 pine forest 44 lichen 44 methane 44 birch trees 44 sediment 44 grasses 44 watercourse 44 undergrowth 44 atmospheric CO2 44 Soils 44 lowland 44 aquatic ecosystems 43 bogs 43 aspen 43 basins 43 snowdrops 43 flora 43 topsoil 43 ecosystems 43 wetland habitat 43 rangelands 43 habitats 43 carbon dioxide 43 rivers 43 marshes 43 Tibetan Plateau 43 cropland 43 melting snow 43 deciduous trees 43 atmospheric carbon dioxide 43 volcanic eruptions 43 hedgerows 43 moors 43 Droughts 42 sugar beet 42 forested 42 rainforests 42 forest 42 sugar maples 42 Vegetation 42 sandy soils 42 lodgepole pine 42 peat 42 sequester carbon 42 willows 42 marshland 42 underground aquifers 42 mountain ranges 42 biochar 42 absorb carbon dioxide 42 gas hydrates 42 watercourses 42 wildlife habitats 42 warmer winters 42 lowlands 42 rapeseed 42 arable 42 forest fires 41 coal seams 41 cereal crops