Related by context. Frequent words. (Click for all words.) 54 intertidal 54 terrestrial ecosystems 53 mountain glaciers 52 planktonic 52 Weddell Sea 52 toxic algae blooms 51 nutrient loading 51 icecaps 51 phytoplankton 51 Polar Regions 51 hotter summers 51 filter feeders 51 freshwater ecosystems 51 aquatic habitats 50 kelp forests 50 diatoms 50 Phytoplankton 50 river deltas 50 warmer temperatures 50 hydrothermal vent 50 Walruses 50 zooplankton 49 warmer winters 49 subarctic 49 ecosystems 49 seagrasses 49 aquatic ecosystems 49 Warming temperatures 49 freshwater lakes 49 oxygen depletion 48 thawing permafrost 48 nitrogen fixation 48 algae blooms 48 glaciers 48 acidification 48 temperate zones 48 marine organisms 48 microscopic algae 48 subtropical regions 48 methane hydrates 48 nutrient runoff 48 ice melts 47 Sediments 47 Cyanobacteria 47 eel grass 47 aerosol particles 47 glacial melt 47 tributary streams 47 glaciers melt 47 aquatic organisms 47 nearshore waters 47 saturated soils 47 benthic 47 oceans 47 poleward 47 plankton 47 inshore waters 47 polar caps 47 melting permafrost 47 copepods 47 kelp beds 47 eelgrass 47 Greenland glaciers 47 algal blooms 47 vertical wind shear 47 harmful algal blooms 47 atmospheric circulation 46 subtropics 46 mid latitudes 46 icebergs 46 landmasses 46 equatorial Pacific Ocean 46 tidal marshes 46 melting snowpack 46 meltwater 46 inland lakes 46 reefs 46 waterspouts 46 biota 46 ocean ecosystems 46 winterkill 46 marine ecosystems 46 hydrological cycle 46 ocean acidity 46 organisms 46 habitat fragmentation 46 headwater streams 46 marine invertebrates 46 seagrass beds 46 marine sediments 46 seamounts 46 rookeries 45 lakes 45 floes 45 tidal pools 45 dissolved oxygen 45 glacial melting 45 dissolved oxygen levels 45 pelagic fish 45 hydrothermal activity 45 moon Europa