Related by context. Frequent words. (Click for all words.) 53 glacial ice 51 Greenland 48 glaciers 47 glacier 46 permafrost 45 polar ice 45 melting permafrost 45 polar 45 Arctic Ocean 45 Antarctic ice 45 Arctic 44 oceans 44 melting polar 44 Antarctic peninsula 44 Tibetan Plateau 44 Antarctica 43 mountain glaciers 43 lake sediments 43 Greenlandic 42 Greenland ice 42 landmasses 42 circumpolar 42 melting glaciers 42 Qinghai Tibet Plateau 42 melting ice 41 polar caps 41 polar regions 41 landforms 41 melting Arctic 40 biodiversity hotspots 40 mountain ranges 40 Arctic Circle 40 Melting ice 40 coral reef 40 biodiversity 40 sea 40 Antarctic Peninsula 40 aridity 40 stalagmite 40 Lake Baikal 40 fjord 39 Antarctic 39 boreal 39 icebergs 39 glacial melt 39 glacial 39 ancient civilizations 39 peat bog 39 landmass 39 Qomolangma 39 melting 39 civilization 39 arctic 39 protective ozone layer 39 Little Ice Age 39 coral reefs 38 mid latitudes 38 World Heritage Site 38 biosphere reserve 38 marine biodiversity 38 decadal 38 ocean acidification 38 Arctic seabed 38 peat bogs 38 boreal forests 38 Antarctic Ice 38 climate change 38 glaciologists 38 ozone depletion 38 Medieval Warm Period 38 Arctic tundra 38 warmer winters 38 Polar bear 38 millennia 38 glaciation 37 atmospheric CO2 37 atmospheric carbon dioxide 37 Wilkins Ice Shelf 37 ice melts 37 plate tectonics 37 Earth crust 37 Permafrost 37 Himalayan glaciers 37 species extinctions 37 flora fauna 37 Inuit 37 Nordic 37 lichens 37 cultural heritage 37 Tromsoe 37 seas 37 lichen 37 Himalayas 37 archipelagos 37 reefs 37 Glaciers 37 tundra 37 World Meteorological Organisation 37 UNESCO 37 Iceland 37 tropical rainforests