Related by context. Frequent words. (Click for all words.) 76 Antarctic ice 64 Greenland ice 58 Antarctic Peninsula 57 Antarctica 56 polar ice 55 glacial ice 54 glaciers 54 Earth crust 53 earth crust 53 Arctic Ocean 52 permafrost 52 meltwater 51 volcanism 51 glacier 50 oceans 50 Antarctic 49 seafloor 49 subduction zone 49 Arctic 48 plankton 48 San Andreas Fault 48 plate tectonics 48 caldera 48 ocean acidification 48 marine ecosystems 47 atmospheric CO2 47 British Antarctic Survey 47 atmospheric carbon dioxide 47 volcanic activity 46 Greenland 46 acidification 46 reefs 46 ocean currents 45 diatoms 45 phytoplankton 45 icebergs 45 magma 45 ocean 44 sediments 44 oceanographers 44 marine ecosystem 44 melting glaciers 44 Eocene 44 Geophysical Research 44 snowpack 44 oceanic 43 seabed 43 coral reefs 43 upwelling 43 melting ice 43 Ellesmere Island 43 marine organisms 43 tectonic 43 Glaciers 43 biosphere 42 krill 42 USGS 42 sedimentary rocks 42 lava dome 42 greenhouse gas concentrations 42 zooplankton 42 Himalayan glaciers 42 tectonic plate 42 mass extinction 42 corals 42 polar regions 42 Enceladus 42 lava flows 42 sediment 42 ice melts 42 subsidence 42 volcanoes 42 volcanic eruptions 42 extinctions 41 Martian surface 41 troposphere 41 polar 41 salinity 41 geologic 41 sedimentary 41 Little Ice Age 41 crevasses 41 lava flow 40 sea 40 Melting 40 basalt 40 reef 40 mammoths 40 Holocene 40 seismometers 40 geosciences 40 Loop Current 40 mass extinctions 40 geologically 40 Saturn rings 39 molten rock 39 coral bleaching 39 glacial 39 stratigraphy 39 oceanographer 39 geological sciences