Related by context. Frequent words. (Click for all words.) 62 subarctic 61 temperate forests 60 temperate zones 59 boreal forests 59 Arctic permafrost 58 warmer winters 58 degrees Fahrenheit warmer 57 glaciers melting 57 glaciers melt 57 permafrost 57 melting permafrost 57 glacial retreat 57 hotter summers 57 mountain glaciers 56 thawing permafrost 56 subtropical regions 56 melting glacier 56 mid latitudes 56 glaciers 55 subtropics 55 poleward 55 interglacial period 55 Warming temperatures 55 temperate regions 55 Little Ice Age 55 tundra 55 Lake Vostok 55 colder winters 55 icecap 55 icecaps 54 retreating glaciers 54 terrestrial ecosystems 54 peat bogs 54 tropics 54 prolonged droughts 54 glacial melt 54 Arctic tundra 54 Polar Regions 54 Permafrost 54 warmer drier 54 milder winters 54 glaciation 53 glacial melting 53 evergreen forests 53 latitudes 53 worsening droughts 53 rainier 53 Melting ice 53 arctic 53 equatorial regions 52 colder 52 species extinctions 52 temperate climates 52 temperate 52 Greenland glaciers 52 boreal 52 glacier melt 52 shrinking glaciers 52 heatwaves 52 aridity 52 Weddell Sea 52 lake sediments 52 atmospheric methane 52 arid regions 52 equatorial Pacific Ocean 52 northern latitudes 51 sediment cores 51 wetter 51 marine sediments 51 glaciated 51 meltwater 51 polar caps 51 driest continent 51 warmer 51 Younger Dryas 51 snowpacks 51 Volcanic eruptions 51 Unusually warm 50 #.#C [004] 50 NASA MODIS Image 50 polar regions 50 Tibetan Plateau 50 warmer temperatures 50 hydrological cycle 50 interglacial 50 cold climates 50 overhunting 50 Serreze 50 greenhouse warming 49 Arctic Ocean 49 temperatures 49 frequent droughts 49 insolation 49 degrees warmer 49 megafauna 49 biodiversity hotspot 49 solar irradiance 49 Antarctica 49 admiral asks 49 gigatonnes 49 atmospheric circulation