Related by context. Frequent words. (Click for all words.) 53 monsoon rainfall 53 sunspot activity 53 atmospheric circulation 51 atmospheric CO2 50 mid latitudes 50 ENSO 50 climatological 50 streamflow 50 periodicity 50 extinctions 49 atmospheric carbon dioxide 49 Serreze 49 greenhouse gas concentrations 49 Landsea 48 greenhouse warming 48 geomagnetic 48 latitudes 47 Medieval Warm Period 47 El Niño 47 sunspot 47 oceanic 47 albedo 47 tropical cyclones 46 logarithmic 46 anthropogenic 46 evapotranspiration 46 troposphere 46 Little Ice Age 46 Pliocene 46 Greenland ice 45 decennial 45 crustal 45 glaciation 45 Holocene 45 glaciers 45 atmospheric concentrations 45 WMO 45 La Niña 44 sunspots 44 climatic 44 Tibetan Plateau 44 seismicity 44 climatology 44 mass extinctions 44 geomagnetic field 44 plate tectonics 44 volcanism 43 occultation 43 Variability 43 GISS 43 Geophysical Research 43 polar regions 43 oscillation 43 salinity 43 coral bleaching 43 marine biodiversity 43 censuses 43 ionosphere 43 variability 43 #.#C [002] 42 abundances 42 landforms 42 Eleventh Plan 42 El Nino 42 World Meteorological Organisation 42 redshift 42 perturbation 42 northern latitudes 42 hydrologic 42 monsoonal 42 perturbations 42 glacial 42 equatorial Pacific 42 Population 42 tropics 42 polar 42 atmospheric chemistry 42 equatorial 42 Landsat 42 mountain glaciers 42 census 42 National Climatic Data 42 hydrological 42 degree Celsius 42 dynamical 42 atmospheric 41 subduction zones 41 ozone depletion 41 Climatic 41 atmospheric sciences 41 La Nina 41 biophysical 41 isotopic 41 glaciologist 41 NCDC 41 IPCC 41 permafrost 41 convective 41 cosmic microwave background 41 fluxes 41 amplitudes