Related by context. Frequent words. (Click for all words.) 60 albedo 57 hydrological cycle 55 equatorial Pacific Ocean 55 North Atlantic Oscillation 55 aerosol particles 54 ice melts 53 atmospheric circulation 53 greenhouse warming 53 insulating layer 53 stratospheric ozone 53 convective 53 temperature gradient 53 troposphere 52 water vapor 52 Arctic Oscillation 52 temperature inversion 52 sunspot cycle 52 glacial melting 51 mid latitudes 51 Polar Regions 51 thermosphere 51 Permafrost 51 cirrus clouds 51 ICESat 50 lithosphere 50 supercooled 50 icecaps 50 atmospheric CO 50 polar regions 50 radiative 49 Melting ice 49 sunspot activity 49 NSIDC 49 atmospheric methane 49 melting 48 polar caps 48 radiative forcing 48 polar 48 geomagnetic field 48 glaciers melt 48 carbonic acid 48 refreezing 48 methane hydrate 48 nucleation 48 storminess 48 oscillation 48 ENSO 48 equatorial Pacific 48 terrestrial ecosystems 48 dynamical 48 hydrogen ions 48 mountain glaciers 48 glacial melt 47 Greenland glaciers 47 Ocean acidification 47 melting permafrost 47 ozone depletion 47 icecap 47 nitrogen fixation 47 anisotropic 47 melt 47 thawing permafrost 47 ocean ridges 47 melts 47 interglacial period 47 upwelling 47 ionosphere 47 Sunspots 47 climate modelers 47 airstream 47 magnetosphere 47 reflectivity 47 vertical wind shear 46 convection 46 atmospheric carbon dioxide 46 thermocline 46 ice 46 arctic 46 journal Geophysical Research 46 El Nino warming 46 permafrost 46 atmospheric CO2 46 Weddell Sea 46 refreezes 46 ultraviolet UV radiation 46 Younger Dryas 46 Earth magnetosphere 46 irradiance 46 isotropic 46 interglacial 46 ragweed pollen 46 polar ice 46 isoprene 45 perturbation 45 meltwater 45 equatorial regions 45 Melting snow 45 crustal 45 latitudes 45 Phytoplankton 45 marine sediments