Related by context. Frequent words. (Click for all words.) 49 icecap 48 marine ecosystems 48 Weddell Sea 48 Antarctic ice 47 stratospheric ozone 47 species extinctions 46 hydrological cycle 46 landmasses 45 Antarctica 45 Antarctic Ice 45 lithosphere 45 terrestrial ecosystems 45 ocean currents 45 glacial melt 45 Antarctic Peninsula 45 Greenland glaciers 45 Antarctic peninsula 44 mid latitudes 44 atmospheric circulation 44 ecosystems 44 marine sediments 44 ocean ecosystems 44 Severe drought 44 marine biodiversity 44 reefs 44 river deltas 44 mountain glaciers 44 seagrasses 43 climatically 43 harmful algal blooms 43 megafauna 43 monsoon rainfall 43 storminess 43 El Ninos 43 Tibetan Plateau 43 phytoplankton 43 volcanic plume 43 retreating glaciers 43 glaciation 43 permafrost 43 Greenland Ice 43 ocean acidity 43 glaciers 42 mass extinction 42 acidification 42 melting permafrost 42 coral reefs 42 extinctions 42 oceans 42 marine ecosystem 42 inundations 42 crustal 42 salinity 42 aridity 42 coral reef ecosystems 42 Antarctic 42 biosphere 42 seamount 42 protective ozone layer 41 Severe flooding 41 mammals 41 Volcanic eruptions 41 glacier melt 41 algal bloom 41 volcanic eruptions 41 Melting ice 41 Overfishing 41 coral bleaching 41 oceanic 41 oxygen starved 41 Little Ice Age 41 Global warming 41 marine organisms 41 Arctic Ocean 41 corals 41 tropics 41 climatic 40 frequent droughts 40 plankton 40 algal blooms 40 hypoxia 40 atmospheric concentrations 40 biodiversity hotspots 40 Qinghai Tibet Plateau 40 El Nino phenomenon 40 Ocean acidification 40 freshwater ecosystems 40 temperate regions 40 earth crust 40 WAIS 40 sea 40 oscillations 40 anoxic 40 polar regions 40 upwelling 39 CO2 concentrations 39 seismicity 39 coastal ecosystems 39 biota 39 Greenland 39 hotter summers