Related by context. Frequent words. (Click for all words.) 66 permafrost 60 glaciers 58 Greenland ice 56 meltwater 55 melting ice 55 polar ice 53 melting glaciers 52 mountain glaciers 52 polar regions 52 glacier 52 methane 51 Arctic Ocean 51 gas hydrates 51 volcanic eruptions 51 Arctic 51 peat bogs 51 ice melts 51 glacial ice 50 volcanic activity 50 Arctic tundra 50 warmer winters 50 atmospheric CO2 50 Greenland 49 arctic 49 volcanism 49 atmospheric carbon dioxide 49 acidification 49 Antarctic ice 49 tundra 48 water vapor 48 earth crust 48 albedo 47 glacial 47 Antarctica 47 plate tectonics 47 glaciation 46 subsidence 46 Earth crust 46 Glaciers 46 extinctions 46 Antarctic Peninsula 46 mass extinctions 45 floods droughts 45 ocean acidification 45 volcanoes 45 melting 45 ozone depletion 44 molten rock 44 lava flows 44 magma 44 Antarctic Ice 44 overgrazing 44 icebergs 44 peatlands 44 subsurface 44 snowmelt 44 mammoths 44 snowpacks 44 British Antarctic Survey 43 boreal 43 melting snow 43 carbon dioxide 43 polar 43 landforms 43 seismic activity 43 boreal forest 43 Little Ice Age 43 volcanic eruption 43 lava 43 carbon sinks 43 oceans 43 ice 43 anthropogenic 42 melting Arctic 42 ozone layer 42 Ice Age 42 troposphere 42 gigatons 42 ocean currents 42 climate change 42 latitudes 42 mass extinction 42 active volcanoes 42 Antarctic 42 northern latitudes 42 lava dome 42 upwelling 42 Himalayan glaciers 42 Arctic Circle 42 acid rain 41 tectonic 41 global warming 41 heatwaves 41 greenhouse gasses 41 coastal erosion 41 greenhouse gas concentrations 41 volcanos 41 deforestation 41 ecosystems 41 warming 41 atmospheric