Related by context. Frequent words. (Click for all words.) 56 Younger Dryas 54 Little Ice Age 54 icecaps 53 atmospheric CO2 53 equatorial Pacific Ocean 52 glaciation 51 interglacial period 51 atmospheric CO 51 glacial melting 51 El Ninos 50 sunspot activity 50 greenhouse warming 50 lithosphere 50 cyclic 50 epochs 49 interglacial 49 equinoxes 49 CO2 concentrations 49 sunspot cycle 49 mid latitudes 49 atmospheric carbon dioxide 49 subtropics 48 temperate zones 48 hotter summers 48 hydrological cycle 48 equatorial Pacific 48 icecap 48 volcanism 48 atmospheric circulation 48 polar caps 48 Northern Hemisphere 47 ocean ridges 47 glacial melt 47 subtropical regions 47 climatological 47 species extinctions 47 volcanic eruptions 47 glacier melt 46 equatorial regions 46 plate tectonics 46 mountain glaciers 46 millenniums 46 Greenland glaciers 46 Medieval Warm Period 45 mass extinctions 45 earths 45 glaciers melt 45 depressions 45 atmospheric concentrations 45 climatic 45 #.#C [004] 45 Climatic 45 climate alarmists 45 ozone depletion 45 latitudes 45 prolonged droughts 45 Holocene 45 storminess 45 tropics 45 Polar Regions 45 radiative forcing 45 ENSO 45 water vapor 45 maxima 45 sunspots 45 diatoms 44 polar 44 thawing permafrost 44 auroral 44 glaciers 44 temperature gradient 44 melting permafrost 44 continental drift 44 ocean acidity 44 stalagmites 44 Volcanic eruptions 44 temperate regions 44 freeze thaw cycles 44 troposphere 44 meltwater 44 permafrost 44 millennia 44 phenomena 43 sunspot numbers 43 Sunspots 43 manmade 43 crustal 43 degree Fahrenheit 43 aerosol particles 43 retreating glaciers 43 Kilauea Volcano 43 landmasses 43 tectonics 43 basalts 43 Tibetan Plateau 43 Global warming 43 glacial ice 43 glaciers melting 43 gigatonnes 42 terrestrial ecosystems 42 rainier