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(Click for frequent words.) 68 polar icecap 65 icefields 63 glacier 63 glaciers 62 icefield 62 Arctic icecap 60 icesheet 59 receding glaciers 59 Arctic Ocean 59 Antarctica 59 icecaps 58 Qinghai Tibet plateau 58 Alaskan glaciers 58 Tibetan Plateau 58 Antarctic glacier 57 Jakobshavn 57 Svalbard archipelago 57 Weddell Sea 57 Olympus Mons 57 permafrost 57 Antarctic glaciers 57 Laurentide Ice Sheet 57 alpine glaciers 57 melting icebergs 57 Laurentide ice sheet 57 Antarctic icecap 56 tropical glaciers 56 Amundsen Sea 56 Ny Alesund 56 Syrtis Major 56 Transantarctic Mountains 56 volcano Olympus Mons 56 Pastoruri 56 snowline 56 polar caps 56 glacial ice 56 Antarctic ice 56 Antarctic Peninsula 55 Kunlun Mountains 55 Qinghai Tibet Plateau 55 Greenland glacier 55 Jakobshavn Glacier 55 Kilimanjaro glaciers 55 Wilkins Ice Shelf 55 stratovolcano 55 polar vortex 55 polar ice 55 Greenland icesheet 55 glacial melting 55 mountain glaciers 55 Last Glacial Maximum 55 Alpine glaciers 55 Greenland icecap 55 Lake Vostok 55 glacial retreat 55 snowcap 55 boreal regions 55 polar 55 snowcaps 55 Gangotri glacier 55 sub glacial lakes 54 Quaternary Period 54 mesosphere 54 Antartica 54 subglacial lakes 54 Hellas Basin 54 icesheets 54 volcanic crater 54 receding glacier 54 shadowed craters 54 volcanic cone 54 Vatnajokull 54 massif 54 glacier melts 54 Prydz Bay 54 icebergs calving 54 interglacial period 54 deep convective clouds 54 Khumbu glacier 54 glaciers melt 54 icefalls 54 Ross Ice Shelf 54 sealevel 54 deglaciation 54 Patagonian Andes 54 Antarctic Ice 54 Aletsch glacier 54 Bering Glacier 53 glacial melt 53 polar regions 53 Larsen Ice Shelf 53 Cumbre Vieja 53 Toba eruption 53 Nisqually Glacier 53 Whillans Ice Stream 53 glacier calving 53 glaciated 53 Son Doong 53 Velicogna 53 magma chamber 53 Rwenzori Mountains 53 lithosphere 53 tropopause 53 alpine terrain 53 Antarctic continent 53 Martian volcanoes 53 Antarctic 53 Greenland ice 53 lenticular clouds 53 Petermann Glacier 53 Shackleton crater 53 Khumbu Glacier 53 Venusian atmosphere 53 Arctic 53 Western Cwm 53 Ulysses spacecraft 53 antarctic 53 glaciers retreated 53 isostatic rebound 53 Mount Kilimanjaro glaciers 53 penguin rookery 53 Vastitas Borealis 53 polar icecaps 53 Jakobshavn Isbrae 53 disappearing glaciers 53 tundra 53 Oceanus Procellarum 53 volcanic caldera 53 cinder cone 53 southernmost continent 52 asthenosphere 52 McMurdo Dry Valleys 52 Kilauea caldera 52 Gusev crater 52 Caloris Basin 52 polar plateau 52 glaciers melted 52 flood basalts 52 tectonic plate movements 52 glaciations 52 Everest Lhotse 52 Dronning Maud Land 52 katabatic winds 52 Cordillera Blanca 52 Nares Strait 52 unclimbed peaks 52 springtime ozone 52 glacier melt 52 calderas 52 Yellowstone caldera 52 Permian extinction 52 Melas Chasma 52 tidewater glacier 52 serac 52 subglacial lake 52 Vatnajökull 52 Namib Desert 52 Aletsch 52 Cryogenian 52 eruptive activity 52 lunar crust 52 Quelccaya 52 glacier retreat 52 Eyjafjoell volcano 52 cryosphere 52 NSIDC 52 basaltic rocks 52 Alaskan tundra 52 southern latitudes 52 Yellowstone Caldera 52 continental crust 52 tidewater glaciers 52 sedimentary deposits 52 shrinking glaciers 52 latitudes 51 sedimentary layers 51 melting glacial 51 oceanic crust 51 Patagonian glaciers 51 Qomolangma 51 Brunt Ice Shelf 51 iceberg calving 51 Qinghai Tibetan Plateau 51 Serreze 51 retreating glaciers 51 glaciation 51 Polar Regions 51 Icecap 51 Larsemann Hills 51 Antarctic peninsula 51 glaciers recede 51 polynya 51 Lassen Peak 51 Eric Rignot 51 timberline 51 Capricornus 51 Great Aletsch Glacier 51 Hardangervidda 51 Ontario Lacus 51 tectonic uplift 51 massifs 51 moon Enceladus 51 arctic 51 Tanzania Mount Kilimanjaro 51 Melting glaciers 51 Gamburtsev 51 ocean basins 51 Quelccaya ice cap 51 undersea volcanoes 51 austral summer 51 Lake Untersee 51 extinct volcanoes 51 atmospheric methane 51 Siberian Traps 51 bedrock outcrops 51 Himalayan Glaciers 51 meridional overturning circulation 51 Ayles Ice Shelf 51 Greenland Ice 51 Amundsen Sea Embayment 51 rock outcrop 51 polar latitudes 51 glacier melting 51 Greenland 51 Martian dust 51 talus slopes 51 Arctic permafrost 51 Jovian moon 51 Tasman Glacier 51 seafloor sediments 51 Laptev Sea 51 Earth radii 51 Thorthormi 51 Nyiragongo 51 midlatitudes 51 Gangotri Glacier 51 solar irradiance 51 Eta Aquarid meteor shower 51 Grímsvötn 51 Spitzbergen 51 mid latitudes 50 Georg Kaser 50 glacier shrinkage 50 abyssal plain 50 icy crust 50 Shiveluch 50 granite cliffs 50 Himalayas 50 airglow 50 Alaskan glacier 50 Himalaya glaciers 50 sheet Summerhayes 50 Andean glaciers 50 shaded craters 50 troposphere 50 Mont Blanc Massif 50 granite outcropping 50 seracs 50 Ruwenzori Mountains 50 Noctilucent clouds 50 Glaciers 50 volcanism 50 treeless tundra 50 volcanic activity 50 #ft [001] 50 Mount Bosavi 50 Tharsis Rise 50 Greenland Antarctica 50 Permafrost 50 mantle plumes 50 Petit Piton 50 cratons 50 Lyrid meteor shower 50 Mars Squyres 50 barren expanse 50 earths surface 50 heavily cratered 50 Svalbard Islands 50 Soufriere Hills Volcano 50 melting glaciers 50 GJ#b 50 Saturn moon Enceladus 50 Ellesmere Island 50 planets Uranus 50 snowfield 50 glaciers melting 50 super perigee moon 50 caldera 50 Sermilik Fjord 50 mammal extinctions 50 Juneau Icefield 50 glaciologists 50 Krafla 50 Fram Strait 50 Dhauladhar range 50 Gakkel Ridge 50 subsurface ocean 50 wolverine habitat 50 thawing tundra 50 fissure eruption 50 Artic Ocean 50 sunspot activity 50 Eyjafjallajökull glacier 50 penguin colonies 50 waning crescent 50 equatorial 50 Herschel Crater 50 Redoubt Volcano 50 molten magma 50 extinct volcano 50 Brigham Grette 50 temperature gradient 50 Himalayan river basins 50 ice calved 50 Sierra Negra 50 Ozone depletion 50 crater rim 50 Dry Valleys 50 basalt cliffs 50 Tianshan Mountains 49 axial tilt 49 Norwegian polar explorer 49 subarctic 49 Spitsbergen Norway 49 Disko Bay 49 Eyjafjallajoekull glacier 49 Athabasca Glacier 49 volcanic ridges 49 Rongbuk Glacier 49 Late Paleozoic 49 Eemian 49 glacial meltwater 49 Halemaumau 49 hypoxic zone 49 Antartic 49 glaciated peaks 49 Chacaltaya glacier 49 Rongbuk glacier 49 floe 49 subglacial 49 Arctic Circle 49 Antarctic Ice Shelf 49 Mount Karthala 49 thermosphere 49 limestone cliff 49 Khumbu valley 49 mantle lithosphere 49 Ice Shelf 49 Mount Mazama 49 terminal moraine 49 Quadrantids 49 Meili Snow 49 Gamburtsev Mountains 49 cinder cones 49 Elysium Planitia 49 Pleistocene Ice Age 49 Himalaya Mountains 49 arctic plains 49 atmospheric CO2 concentration 49 Eyjafjallajökull erupted 49 polar craters 49 Bolivian Andes 49 perma frost 49 iridium layer 49 slender crescent 49 Minya Konka 49 equatorial regions 49 warm interglacial periods 49 Konrad Steffen 49 glaciers receded 49 lava flowed 49 Ice Age glaciers 49 KT boundary 49 icescape 49 lava domes 49 fjord 49 atmospheric CO2 levels 49 Columbia Icefield 49 Kittlitz murrelet 49 Nuptse 49 Sicily Mount Etna 49 temperate forests 49 equatorial waters 49 volcanic plume 49 Martian crater 49 volcanic peaks 49 mountain snowpacks 49 sandstone formations 49 megadrought 49 neutrino telescope 49 Jupiter moon Io 49 dormant volcano 49 crustal plate 49 shadowy craters 49 atmospheric carbon dioxide 49 Cape Adare 49 Lake Cheko 49 Snowball Earth 49 equatorial latitudes 49 Antarctic icesheet 49 exosphere 48 taiga forest 48 neutrino detector 48 lunar craters 48 coldest windiest 48 Arsia Mons 48 waning gibbous moon 48 ejecta blanket 48 Arctic seabed 48 Norwegian Polar 48 Tenmile Range 48 permafrost thaws 48 lava tubes 48 Mariana Arc 48 Geminids meteor shower 48 glacial fjord 48 geologist Magnus Tumi 48 Jakobshavn glacier 48 supervolcanoes 48 Pavonis Mons 48 Teton Range 48 Geologically speaking 48 aerosol concentrations 48 Arabia Terra 48 mountain ranges 48 supermoon 48 Mt Kilimanjaro 48 Arctic tundra 48 Fomalhaut b 48 Chukchi Cap 48 thin crescent 48 towering icebergs 48 supervolcano 48 jagged peaks 48 lava flow 48 endless expanse 48 El Teide 48 unstable lava dome 48 moon gravitational pull 48 volcano caldera 48 glaciated terrain 48 atmospheric CO2 48 melting glacier 48 paleomagnetic 48 meltwater 48 layered bedrock 48 Valles Marineris 48 Adélie penguins 48 melting permafrost 48 Quadrantid meteor shower 48 surface temperatures SSTs 48 seafloor 48 Mauna Loa volcano 48 tropical troposphere 48 Exit Glacier 48 Uhuru Peak 48 Qinghai Tibetan plateau 48 Tien Shan Mountains 48 Katla volcano 48 Little Ice Age 48 Shackleton Crater 48 Kilauea Volcano 48 Medieval Warming Period 48 Halema'uma'u Crater 48 melting icecaps 48 seamount 48 Puijila 48 ice bergs 48 Isidis Planitia 48 Martian polar 48 Mount Ruapehu 48 #m #ft [004] 48 Mount Semeru 48 glacial moraines 48 Harding Icefield 48 Pu'u O'o vent 48 Lake Balkhash 48 Taklimakan Desert 48 temperate latitudes 48 stratospheric ozone 48 tectonic activity 48 retreating glacier 48 unclimbed peak 48 Holocene epoch 48 rugged topography 48 #.#oC [001] 48 Sheet WAIS 48 coolings 48 prevailing westerly winds 48 Siberian permafrost 48 brownish haze 48 seabed 48 lunar perigee 48 snowcover 48 Jay Zwally 48 arctic tundra 48 sastrugi 48 Baldy Peak 48 waxing crescent 48 Upsilon Andromedae b 48 lunar equator 48 Alpazat 48 Crozet Islands 48 Terre Adelie 48 Melting ice 48 climatic anomalies 48 Chacaltaya 48 Greenland glaciers 48 Qaanaaq 48 crag 48 grabens 48 Perito Moreno glacier 48 Alpine Fault 48 underwater Lomonosov Ridge 48 Siula Grande 48 polar oceans 48 barren moonscape 47 granite monolith 47 frozen wasteland 47 gaseous planet 47 Earth axial tilt 47 spruce fir forest 47 Lop Nur 47 Earths crust 47 abyssal 47 galactic alignment 47 Flattop Mountain 47 Molnia 47 glacial cycles 47 Chryse Planitia 47 thermal inertia 47 Afar desert 47 cosmic ray flux 47 Kasatochi 47 glacial lake 47 clouds shrouding 47 cumulus cloud 47 upper troposphere 47 anthropogenic CO2 emissions 47 sedimentary layer 47 Kerguelen Plateau 47 Agulhas Current 47 Huayna Potosi 47 Siple Dome 47 North Pole 47 Bedout 47 albedo feedback 47 Saharan Desert 47 Ngauruhoe 47 seamounts 47 deepwater corals 47 colliding tectonic plates 47 Puu Oo 47 greenhouse warming 47 alpine tundra 47 Eyjafjallajökull eruption 47 Ilulissat glacier 47 lava eruptions 47 Rignot 47 Mount Damavand 47 southerly latitudes 47 Carstensz 47 Zhongshan Station 47 Skagerrak 47 Antarctica EPICA 47 Endurance Crater 47 interglacial periods 47 Lake Yoa 47 tropical latitudes 47 moon Titan 47 crevassed 47 celestial sphere 47 scarps 47 whitebark pines 47 Sierra Negra volcano 47 Saturnian moon 47 coldest driest 47 equator 47 GJ #b [002] 47 layered sedimentary rock 47 hidden crevasses 47 Walt Meier 47 constellation Cassiopeia 47 sunward 47 western Antarctic Peninsula 47 landmasses 47 Cerro Paranal 47 crustal 47 Endurance crater 47 Rossby waves 47 TrES 4 47 Sangre de Cristos 47 frigid arctic 47 tectonic plate dives 47 landforms 47 hotsprings 47 crevasses 47 Chogolisa 47 species extinctions 47 Haleakala volcano 47 Sawtooth Mountains 47 Martian terrain 47 frozen wastelands 47 Charcot Island 47 Chile Chaiten volcano 47 photosphere 47 stalagmite 47 SuperMoon 47 limestone outcrops 47 magma ocean 47 Chazy Reef 47 Molten rock 47 Capricorn Glacier 47 permanently shadowed craters 47 supercontinent 47 Svalbard islands 47 melting ice 47 Ice Ages 47 Antarctic ozone 47 coral atoll 47 declivity 47 pumice plain 47 carbon dioxide concentrations 47 Arctic ice floes 47 Swiftcurrent Lake 47 mantle convection 47 Kilimanjaro 47 Pumori 47 ridge 47 Kola Peninsula 47 Baruntse 47 Oort cloud 47 Colima volcano 47 Tianshan Mountain 47 unclimbed 47 conifer forests 47 auroral activity 47 Taklamakan Desert 47 earths crust 47 bristlecone pine trees 47 lava flowing 47 Toutatis 47 Opportunity rover 47 Glaciologists 47 Mud volcanoes 47 Nankai Trough 47 icebergs drifting 47 warmings 47 permafrost melts 47 forested slopes 47 Altai Mountains 47 Jupiter moons Europa 47 glacier terminus 47 Qinghai Plateau 47 Planitia 47 lichen 47 Eyjafjoell 47 Paleocene Eocene Thermal Maximum 47 Cryogenian period 47 volcano lava dome 47 hoary marmots 47 Kilauea summit 47 glaciers retreating 47 Hellas Planitia 47 ancient lava flows 47 Alpine glacier 47 Grímsvötn volcano 46 HiRISE image 46 Mount Foraker 46 WASP #b 46 Medieval Warm Period 46 speleothems 46 Redoubt blew 46 Bellingshausen Sea 46 QQ# 46 stalactite 46 alpine peaks 46 interglacial 46 lunar meteorites 46 semidesert 46 Sognefjord 46 crater 46 sunspot cycle 46 meteorite craters 46 Beardmore Glacier 46 Permian Period 46 Ithaca Chasma 46 Pu'u O'o 46 Sakurajima 46 lavas 46 Vatnajökull glacier 46 ° #'N 46 Maunder minimum 46 icefall 46 Mount Shuksan 46 Ares Vallis 46 gibbous moon 46 Tibet Qinghai 46 Martian surface 46 Tibetan plateau 46 tallest freestanding mountain 46 albedo 46 pericentre 46 dogsled expedition 46 tawny hills 46 Shishapangma 46 hummocks 46 snowpacks 46 oceanic circulation 46 cryovolcanism 46 rocky ridge 46 Mount Qomolangma 46 Comet NEAT 46 Spitsbergen 46 Baltoro Glacier 46 Mayan pyramids 46 Vostok Station 46 radar altimetry 46 Fuji san 46 equatorial Pacific Ocean 46 smoggy atmosphere 46 lava spewing 46 penumbral shadow 46 Noachian era 46 NASA QuikScat satellite 46 Josefino Comiso 46 seabeds 46 Columbia Icefields 46 Bonneville Crater 46 Goldilocks planet 46 Kilauea eruption 46 lava tube 46 zodiacal light 46 volcanic rock 46 rocky outcrop 46 Cape Royds 46 Oslo Fjord 46 climate modellers 46 forecaster Helen Chivers 46 chromosphere 46 Kunlun Station 46 Kermadec Arc 46 Khumbu icefall 46 Kangerlussuaq 46 Martian landscape 46 crustal movements 46 glacial shrinkage 46 volcanic craters 46 Sermeq Kujalleq glacier 46 mud volcanoes 46 Mertz Glacier 46 Pulag 46 treeless terrain 46 Chilean Atacama Desert 46 subalpine meadows 46 driest deserts 46 cratered highlands 46 Amazonian rainforest 46 Earth thermosphere 46 Greenland Glaciers 46 Chajnantor plateau 46 volcanoes erupting 46 anthropogenic warming 46 Chugach Mountains 46 Sesia Valley 46 noctilucent clouds 46 bristlecone pines 46 Nuptse East 46 unroped 46 Tien Shan mountains 46 volcanic plumes 46 Lava flows 46 Kamoamoa eruption 46 treeline 46 Pu'u O'o crater 46 Meridiani 46 Mera Peak 46 Norris Geyser Basin 46 penitentes 46 Changcheng Station 46 austral winter 46 Mount Tallac 46 decadal scale 46 Qaidam Basin 46 Sisimiut 46 Melting Arctic 46 Orcus Patera 46 summitting 46 Chasma Boreale 46 thin crescent moon 46 Neumayer Station 46 Himalayan glaciers 46 VY Canis Majoris 46 Cabeus 46 mountain lava dome 46 ITCZ 46 Tharsis 46 volcano 46 permafrost melting 46 surface hoar 46 polar mesospheric clouds 46 lake sediments 46 Ilulissat Greenland 46 hydrate deposits 46 rocky crags 46 aperture telescope 46 aspen grove 46 Dr van Ommen 46 Hawaii Mauna Kea 46 snowpack 46 Kilauea volcano 46 moulins 46 Augustine Volcano 46 outlet glaciers 46 heliopause 46 volcanic eruptions 46 Tuckerman Ravine 46 glacially carved 46 Nili Fossae 46 greenhouse gas concentrations 46 Grimsvötn 46 hoarfrost 46 Surtsey 46 Karangetang 46 coccolithophores 46 bluebird skies 46 Grimsvotn lies 46 Eyjafjallajökull 46 Scambos 46 temperate rainforest 46 Mount Rinjani 46 limestone cave 46 Westman Islands 46 Mount Kilimanjaro 46 subalpine 46 Piton de la 46 unclimbed mountain 46 anomalously warm 46 Serengeti ecosystem 46 Davidson Seamount 46 Matanuska Glacier 46 Keeling Curve 46 cosmic ray intensity 46 Hawaiian Volcano Observatory 45 Igor Semiletov 45 Maui Haleakala 45 Westfjords 45 Endeavour Crater 45 paleoclimate 45 Namib Naukluft Park 45 craton 45 lunar soil 45 glacial earthquakes 45 ocean ridges 45 temperature plummets 45 Inaccessibility 45 Orjan Gustafsson 45 altitudinal 45 Kala Pattar 45 horseshoe shaped crater 45 Mendenhall Glacier 45 seismicity 45 granite spiers 45 Jan Gunnar Winther 45 Tunguska explosion 45 magma chambers 45 bleached corals 45 El Chichon 45 Sgurr Choinnich Mor 45 midlatitude 45 asteroid impacts 45 northern latitudes 45 heliosphere 45 Taklimakan 45 Virunga Mountains 45 waxing gibbous moon 45 Thawing permafrost 45 Norway Svalbard 45 Maastrichtian 45 solar corona 45 Spitsbergen archipelago 45 aeromagnetic anomaly 45 Longyearbyen Norway 45 subduction earthquake 45 lava fountains 45 megadroughts 45 taiga 45 aridity 45 Oort Cloud 45 continental shelf 45 granite outcroppings 45 summiting Mount Everest 45 scientist Jay Zwally 45 geomagnetic activity 45 drumlin 45 Cryospheric Sciences Branch 45 El Nino warming 45 balds 45 atmospheric concentrations 45 Shiveluch volcano 45 MGS Mars Orbiter Camera 45 Tunguska meteorite 45 Halema'uma'u 45 Illimani 45 Mt Taranaki 45 Kaminski Morrow 45 Ojos del Salado 45 CO2 concentrations 45 Grimsvoetn volcano 45 Himalayan peaks 45 tropical coral reefs 45 Wolszczan 45 calving glaciers 45 aphelion 45 fault scarps 45 ship Akademik Fyodorov 45 pikas 45 martian 45 Glyder Fawr 45 Himalayan glacier 45 ocean acidity 45 Arctic Archipelago 45 Cerro Pachon 45 unspoiled wilderness 45 Sermeq Kujalleq 45 perigee moon 45 auroral displays 45 Mount Kanchenjunga 45 granite outcrops 45 Waleed Abdalati 45 refrozen ice 45 Soufrière Hills Volcano 45 cataclysmic eruption 45 Namib desert 45 lava flows 45 Chisos Mountains 45 planet Uranus 45 phytoplankton bloom 45 downwelling 45 Quaoar 45 Chilean Andes 45 Bindschadler 45 GZK cutoff 45 ringed planet 45 Sangre de Cristo Mountains 45 Himalaya Karakoram 45 Jonathan Overpeck 45 Okmok Volcano 45 Apophis asteroid 45 ancient hominid 45 Hadow 45 waning crescent moon 45 methane hydrate 45 Orientale Basin 45 Arctic archipelago 45 Vatnajokull glacier 45 Deadhorse Alaska 45 Selkirk Mountains 45 Colorado fourteeners 45 Ousland 45 Polar explorers 45 Cretaceous Tertiary 45 dolerite 45 Shivaliks 45 landmass 45 Saturn Enceladus 45 constellation Auriga 45 landform 45 Lonnie Dupre 45 mid Pliocene 45 basaltic rock 45 Nevado del Huila 45 Franz Josef glacier 45 westerly gales 45 Mt Elbrus 45 #.#C #.#F [003] 45 Triassic Period 45 Nature Geosciences 45 hydrothermal activity 45 GJ #b [001] 45 Seward Peninsula 45 anticlines 45 Mount Manaro 45 La Niña pattern 45 Eurasian continent 45 volcanic islands 45 abyssal depths 45 molten rocks 45 thermocline 45 Ice floes 45 spews ash 45 sandstone bluffs 45 galactic disk 45 heliosheath 45 Taurids 45 Saturn moon Mimas 45 constellation Andromeda 45 Hardanger Fjord 45 Nepalese Himalayas