Related by context. Frequent words. (Click for all words.) 70 North Atlantic Oscillation 63 atmospheric circulation 61 ENSO 59 La Niña 58 hydrological cycle 58 sunspot activity 58 sunspot cycle 58 equatorial Pacific Ocean 58 El Ninos 57 mid latitudes 57 La Nina 56 upwelling 56 jet stream 55 El Nino phenomenon 55 El Niño 55 equatorial Pacific 55 aerosol particles 55 vertical wind shear 55 glacial melting 55 greenhouse warming 55 oscillation 54 Serreze 54 Younger Dryas 54 thermosphere 53 El Nino 53 troposphere 53 lithosphere 53 Little Ice Age 53 albedo 53 ozone depletion 52 atmospheric CO 52 storminess 52 anticyclone 52 temperature gradient 52 westerlies 51 irradiance 51 warmer temperatures 51 ragweed pollen 51 La Nina weather 51 jetstream 50 hotter summers 50 convective 50 geomagnetic field 50 precipitation 50 cirrus clouds 50 tropical cyclones 50 atmospheric CO2 50 atmospheric chemistry 50 cyclic 50 cooler drier 50 glaciation 49 perturbation 49 volcanism 49 water vapor 49 sinusoidal 49 supercooled 49 interglacial period 49 Landsea 49 Jet Stream 48 polar caps 48 thundersnow 48 stratospheric ozone 48 northeasterly winds 48 equatorial regions 48 colder 48 warmer winters 48 wind shear 48 continental crust 48 geomagnetic 48 monsoonal 48 glacial melt 48 updrafts 48 precip 48 thermocline 48 El Niño phenomenon 48 westerly winds 48 interglacial 48 oscillations 48 perturbations 48 carbonic acid 47 warmer 47 Ocean acidification 47 climatological 47 colder temperatures 47 magmatic 47 convection 47 anisotropy 47 World Meteorological Organisation 47 hypoxia 47 subtropical regions 47 ocean currents 47 dynamical 47 X ray emission 47 Southerly winds 47 atmospheric concentrations 47 Patzert 47 barometric pressure 47 radiative 47 wetter 47 subduction 47 tropical moisture