Related by context. Frequent words. (Click for all words.) 44 Ozone layer 44 Antarctic seas 43 icecap 43 Sales excluding autos 42 icecaps 41 snowline 41 glaciers 41 thawing permafrost 41 glaciers melt 40 Boreal Forest 40 rocky slope 40 Greenland glaciers 40 boreal forests 40 virgin forests 40 sandstone cliffs 40 rainforests 39 melting permafrost 39 precipices 39 biblical temples 39 Mount Elbrus 39 mountain glaciers 39 glacier 39 floe 39 banners denouncing 39 retreating glaciers 39 Vinson Massif 38 Arctic permafrost 38 Amazonian rainforest 38 ozone layer 38 unfurled banner 38 treetops 38 icebound 38 protective ozone layer 37 rockface 37 rainforest 37 caribou herds 37 tundra 37 arctic 37 cliffs 37 Amazon Rainforest 37 towering peaks 37 Jewish Temples 37 Arctic 37 Arctic Ocean 37 window ledges 37 shrinking glaciers 37 Melting glaciers 37 invading armies 37 mountainside 37 forests 36 timberline 36 boreal forest 36 ridge 36 sheer cliffs 36 barbarism 36 Himalayan peaks 36 peatlands 36 Amazon rainforest 36 Antarctic ice 36 terrestrial ecosystems 36 Antarctic Peninsula 36 towering cliffs 36 rock outcropping 36 Mt Kilimanjaro 36 coral reefs 36 mountains 36 tropical rainforests 36 stratospheric ozone 36 volcanic peaks 36 rocky ledge 35 mountain peaks 35 unfurling banner 35 bee populations 35 Himalayas 35 peat bogs 35 treeline 35 Qomolangma 35 glacial melting 35 polar bears 35 Antartica 35 Antarctica 35 oceans 35 Apa Sherpa 35 destruction 35 permafrost 35 chimney stack 35 crags 35 species extinctions 35 biosphere 35 Opium cultivation 35 unfurled banner reading 35 ecological catastrophe 34 subarctic 34 lifelessly 34 atmospheric concentrations 34 snowfield 34 polar ice 34 glaciers melting 34 mountain slopes 34 ledge 34 Typhoon Saomai