Related by context. Frequent words. (Click for all words.) 75 glaciers 61 glacier 55 Himalayan glaciers 54 melting glaciers 53 meltwater 53 Antarctica 52 Antarctic Peninsula 51 glacial ice 49 Antarctic ice 49 polar ice 49 Greenland ice 47 Melting 47 Arctic Ocean 47 Himalayas 47 permafrost 46 oceans 45 Arctic 45 melting ice 45 Antarctic 45 plate tectonics 44 Glacier 44 Greenland 44 Droughts 44 Himalaya 44 Deserts 43 Glacial 43 volcanism 43 Coral reefs 43 glacial 43 mountain ranges 43 Corals 42 coral reefs 42 polar regions 42 icebergs 42 atmospheric carbon dioxide 42 Dolomites 42 marine ecosystems 41 ecosystems 41 Global warming 41 volcanoes 41 Greenhouse gases 41 lava flows 41 magma 41 Volcanoes 40 extinctions 40 lichens 40 Little Ice Age 40 tropics 40 mountain peaks 40 atmospheric CO2 39 Whales 39 polar bears 39 snowpacks 39 biosphere 39 snowmelt 39 greenhouse gas concentrations 39 lava flow 39 Artic 39 Earth crust 39 volcanic activity 39 tropical forests 39 Global Warming 39 biodiversity 39 Polar bears 39 melting 39 volcanic eruptions 39 earth crust 39 Pleistocene 39 boreal 38 aspens 38 Reefs 38 Oceans 38 acidification 38 Tetons 38 Arctic tundra 38 Mammals 38 lakes 38 polar 38 caldera 37 stalactites 37 Habitats 37 Species 37 Ice Age 37 mountain snowpack 37 Alps 37 rivers 37 aquatic ecosystems 37 tropical rainforests 37 tundra 37 Trekking 37 Insects 36 snowpack 36 Ellesmere Island 36 Mussels 36 albedo 36 Warming 36 carbon sinks 36 mudflows 36 Bering Strait 36 latitudes 36 corals