Related by context. Frequent words. (Click for all words.) 72 atmospheric circulation 68 hydrological cycle 63 ocean currents 62 mid latitudes 62 aerosol particles 60 storminess 58 upwelling 58 stratospheric ozone 58 greenhouse warming 58 lithosphere 58 species extinctions 58 crustal 58 glacial melt 58 atmospheric CO2 57 equatorial Pacific 57 El Ninos 57 polar caps 57 North Atlantic Oscillation 56 atmospheric 56 oceanic 56 terrestrial ecosystems 56 water vapor 56 ocean acidity 56 ENSO 56 subtropics 55 oscillation 55 troposphere 55 albedo 54 atmospheric chemistry 54 vertical wind shear 54 volcanism 54 tropical cyclones 54 convective 53 jet stream 53 oscillations 53 oceans 53 sunspot activity 53 subtropical regions 53 anthropogenic 53 climatic 53 atmospheric concentrations 53 vortices 53 magnetosphere 53 tropical moisture 53 phytoplankton 53 Ocean acidification 53 Wind shear 53 perturbations 53 atmospheric carbon dioxide 53 oxygen isotopes 53 perturbation 52 glacier melt 52 irradiance 52 anisotropy 52 tectonics 52 geomagnetic field 52 radiative 52 anthropogenic climate 52 plate tectonics 52 meltwater 52 westerlies 52 marine sediments 52 Earth magnetosphere 52 acidification 52 climatological 51 landmasses 51 currents 51 CO2 concentrations 51 salinity 51 temperature gradient 51 polar regions 51 Greenland glaciers 51 Climatic 51 aerosols 51 hotter summers 51 ocean ecosystems 51 Tibetan Plateau 51 Serreze 51 harmful algal blooms 51 ocean acidification 51 Nature Geoscience 50 ocean 50 ozone depletion 50 dynamical 50 equatorial 50 gyre 50 ionosphere 50 extinctions 50 tropics 50 polar ice 50 freshwater ecosystems 50 X ray emission 50 continental drift 50 glaciers 50 El Nino phenomenon 50 hydrodynamic 50 Melting ice 50 auroral 50 decadal 50 greenhouse gas concentrations 50 tide gauges