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(Click for frequent words.) 79 Greenland ice 76 Antarctic Ice 71 polar ice 69 Antarctica 67 Greenland Ice 65 Antarctic glaciers 64 glaciers 63 Antarctic Peninsula 62 Greenland glaciers 62 permafrost 61 glacial ice 60 Arctic Ocean 60 Antarctic 59 subglacial lakes 59 Ross Ice Shelf 59 Amundsen Sea 58 Weddell Sea 58 Antarctic glacier 58 sub glacial lakes 58 deglaciation 58 Rignot 57 Sheet WAIS 57 glacier 57 Amundsen Sea Embayment 57 Greenland glacier 57 Greenland icesheet 56 WAIS 56 icecaps 56 mountain glaciers 56 Antarctic Ice Shelf 56 icecap 55 Greenland 55 melting ice 55 Wilkins Ice Shelf 55 Laurentide ice sheet 55 subglacial 55 Earth crust 54 icesheets 54 polar icecap 54 continental crust 54 icesheet 54 iceberg calving 54 continental drift 54 Cryogenian 53 meltwater 53 Arctic icecap 53 Antarctic peninsula 53 Greenland icecap 53 Lake Vostok 53 Arctic 53 lithosphere 53 plate tectonics 53 sheet Summerhayes 52 Laurentide Ice Sheet 52 Antarctic ozone 52 polar 52 Ayles Ice Shelf 52 polar caps 52 Melting ice 52 British Antarctic Survey 52 glacial retreat 52 Alaskan glaciers 52 alpine glaciers 52 Siberian permafrost 52 Jakobshavn 52 atmospheric methane 52 flood basalts 52 earth crust 52 ocean basins 52 stratospheric ozone 52 subsurface ocean 51 retreating glaciers 51 seafloor sediments 51 atmospheric carbon dioxide 51 glacial cycles 51 Alpine glaciers 51 polar regions 51 icebergs 51 Antarctic icecap 51 Ice Shelf 51 Siberian Arctic 51 Arctic permafrost 51 shrinking glaciers 51 Bering Glacier 51 Jakobshavn Isbrae 51 crustal 51 interglacial period 50 marine sediments 50 Scambos 50 oceans 50 melting glaciers 50 paleomagnetic 50 disappearing glaciers 50 melting polar 50 cryosphere 50 oceanic crust 50 Yellowstone caldera 50 glacier calving 50 glacial melting 50 Last Glacial Maximum 50 ocean acidity 50 Velicogna 50 Melting glaciers 50 Prydz Bay 50 paleoclimate 50 Transantarctic Mountains 50 Larsen Ice Shelf 49 Whillans Ice Stream 49 Glaciologists 49 oceanic circulation 49 Glaciers 49 Eric Rignot 49 Hunt Ice Shelf 49 polar oceans 49 springtime ozone 49 Snowball Earth 49 Siple Dome 49 Cape Royds 49 glaciologists 49 greenhouse warming 49 gigatonnes 49 NSIDC 49 sediments deposited 49 asthenosphere 49 polar icecaps 49 Permafrost 49 coccolithophores 49 melting icebergs 49 paleoclimatic 49 hydrological cycle 49 atmospheric CO2 levels 49 Jakobshavn glacier 49 melting permafrost 48 seafloor 48 Waleed Abdalati director 48 receding glaciers 48 Dronning Maud Land 48 glacial 48 glacial melt 48 undersea volcanoes 48 Ellesmere Island 48 Puijila 48 tectonic plate movements 48 glaciation 48 glaciological 48 ocean acidification 48 Thawing permafrost 48 Antartica 48 explosive volcanism 48 Fram Strait 48 Jakobshavn Glacier 48 Antarctic icesheet 48 Eemian 48 glaciations 48 Polar Regions 48 glaciers melt 48 climate modellers 48 permafrost thaws 48 atmospheric CO2 48 mammal extinctions 48 Bellingshausen Sea 48 outlet glaciers 48 abyssal plain 47 antarctic ice 47 clathrates 47 sedimentary layers 47 Greenland Antarctica 47 Martian meteorite 47 forams 47 Greenland Glaciers 47 Antarctica EPICA 47 Petermann Glacier 47 magma chamber 47 seamounts 47 fissure eruption 47 Hellas Basin 47 Nares Strait 47 Himalayan Glaciers 47 carbon dioxide concentrations 47 ° C warmer 47 seabed sediments 47 moulins 47 icefields 47 atmospheric circulation 47 subglacial lake 47 thermohaline circulation 47 ocean currents 47 Ronne Ice Shelf 47 icebergs calving 47 volcanism 47 glaciers melting 47 glacier melt 47 Gakkel Ridge 47 mid latitudes 47 Alpine Fault 47 Himalaya glaciers 47 Isabella Velicogna 47 marine ecosystems 47 glaciers retreated 47 thawing permafrost 47 acidification 47 Antarctic ozone layer 47 melting glacial 47 polar plateau 46 Quaternary Period 46 Dry Valleys 46 Kilimanjaro glaciers 46 terrestrial ecosystems 46 deepwater corals 46 Bindschadler 46 tropical troposphere 46 gas hydrates 46 isostatic rebound 46 Antarctic continent 46 Zeebe 46 icefield 46 Lake Untersee 46 glacier melting 46 oceanic 46 eruptive activity 46 supervolcanoes 46 Permian extinction 46 Adélie penguins 46 Martian surface 46 Dr van Ommen 46 methane seeps 46 CO2 concentrations 46 sedimentary deposits 46 permafrost melts 46 deep convective clouds 46 polar vortex 46 sediments 46 Catlin Arctic 46 Julienne Stroeve 46 western Antarctic Peninsula 46 subducted 46 magma 46 ice melts 46 Himalayan river basins 46 tropical glaciers 46 Jupiter moons Europa 46 methane hydrates 46 glaciers melted 46 atmospheric CO 46 Luthcke 46 poleward 46 Brunt Ice Shelf 46 sedimentary 45 basaltic rocks 45 hydrologic cycle 45 midlatitudes 45 Jay Zwally 45 melting 45 supercontinents 45 Antartic 45 Saturn moon Enceladus 45 thawing tundra 45 retreating glacier 45 geologic 45 Charcot Island 45 ocean ridges 45 Himalayan glaciers 45 carbonate minerals 45 coral reefs 45 ANDRILL 45 Natalia Shakhova 45 Konrad Steffen 45 downwelling 45 mesosphere 45 mantle convection 45 atmospheric concentrations 45 ice 45 McMurdo Sound 45 Qinghai Tibet plateau 45 Tibetan Plateau 45 species extinctions 45 Atlantic thermohaline circulation 45 Ayles shelf 45 subarctic 45 tidewater glaciers 45 climate modelers 45 ancient hominid 45 Ilulissat glacier 45 Kangerdlugssuaq 45 interglacial periods 45 cratons 45 Shakhova 45 Martian volcanoes 45 Nankai Trough 45 palaeoclimate 45 Melting Arctic 45 anthropogenic warming 45 ice calved 45 meridional overturning circulation 45 permanently shadowed craters 45 acidic oceans 45 antarctic 45 microbialites 45 poleward shift 45 seabed 45 teleconnections 45 Pu'u O'o crater 45 magma ocean 45 lunar meteorites 45 megafauna 45 protective ozone layer 45 glacial meltwater 44 ancient supercontinent 44 Quelccaya 44 volcanic plumes 44 ozone layer 44 mantle plumes 44 glacial earthquakes 44 megafaunal 44 bedrock outcrops 44 volcanic activity 44 Warmer oceans 44 Ice Sheet 44 refrozen ice 44 Tasman Glacier 44 Wilfried Haeberli 44 KT boundary 44 Nature Geoscience 44 ocean 44 extinctions 44 Ted Scambos 44 Ozone layer 44 arctic 44 Helheim glacier 44 Palaeocene Eocene Thermal Maximum 44 martian meteorites 44 Siberian Traps 44 tropopause 44 warmings 44 Antarctic icebergs 44 molten magma 44 lake sediments 44 Rossby waves 44 Michael Studinger 44 atmospheric oceanic 44 greenhouse gas concentrations 44 Kerguelen Plateau 44 warm interglacial periods 44 ALH# 44 lunar crust 44 Ulysses spacecraft 44 West Antarctic icesheet 44 glacier shrinkage 44 Mars Squyres 44 GJ#b 44 Gondwana supercontinent 44 Adelie penguins 44 solar nebula 44 Larsemann Hills 44 Service WGMS 44 Professor Hoegh Guldberg 44 Russ Hopcroft 44 Ernst Peebles 44 Mark Serreze 44 Pleistocene Ice Age 44 sedimentary rock 44 southernmost continent 44 permafrost thaw 44 ozone depletion 43 supercontinent 43 glacial interglacial 43 Hadow 43 seamount 43 methane clathrate 43 subduction zones 43 Hamish Pritchard 43 caribou herds 43 glaciologist 43 Meridiani 43 Brigham Grette 43 reef habitats 43 porous sandstone 43 Arctic Shelf 43 Sermilik Fjord 43 Cumbre Vieja 43 Seafloor 43 penguin rookery 43 kyr 43 climatic variability 43 Latady Island 43 Autosub 43 glacial fjord 43 reefs 43 water vapor 43 Ocean acidification 43 Agulhas Current 43 Polar Vortex 43 shadowed craters 43 Martian rocks 43 Antarctica Amundsen 43 polar explorer Ernest Shackleton 43 Walt Meier 43 Bedout 43 subpolar 43 upper troposphere 43 Willerslev 43 Tunguska explosion 43 Roland Burgmann 43 Helheim Glacier 43 Pastoruri 43 Phanerozoic 43 Venusian atmosphere 43 Titanic hull 43 methane hydrate deposits 43 cryovolcanism 43 atmospheric CO2 concentration 43 glaciers receded 43 Atlantic cod fishery 43 Schmittner 43 martian surface 43 sediment cores 43 Sumatra Andaman earthquake 43 sulfur isotope 43 hydrate deposits 43 Vatnajökull 43 Cascadia fault 43 tidewater glacier 43 geomorphology 43 Syrtis Major 43 McMurdo Dry Valleys 43 geologically active 43 anthropogenic climate 43 sealevel 43 ocean ecosystems 43 mid Pliocene 43 Melting polar 43 Nimrod expedition 43 NASA QuikScat satellite 43 Gondwanaland 43 stratospheric clouds 43 polynya 43 musk oxen 43 Petermann glacier 43 interglacial 43 ICESat 43 hypoxic zone 43 lithospheric 43 meteorite impacts 43 Robert Bindschadler 43 Martian craters 43 boreal regions 43 comet nuclei 43 biogeographic 43 Igor Semiletov 43 ocean sediment cores 43 thermosphere 43 volcanic vents 43 lavas 43 melting Arctic 43 austral summer 43 icy crust 43 Cape Adare 43 aerosol particles 43 ppmv 43 microplastics 43 solar irradiance 43 volcanic magma 43 Hesperian Epoch 43 multicellular creatures 43 Arctic Archipelago 43 volcanoes erupt 43 Georg Kaser 43 Paleoclimate 43 subduction zone earthquake 42 undersea volcanic 42 stalagmites 42 tectonic stresses 42 moon Enceladus 42 Orjan Gustafsson 42 Neoproterozoic 42 saline aquifers 42 depositional 42 troposphere 42 equatorial regions 42 Soufriere Hills Volcano 42 Noachian era 42 Warmer seas 42 substorm 42 Himalayan glaciers melting 42 Drygalski Ice Tongue 42 mountain snowpacks 42 megafauna extinction 42 glacier melts 42 subducting plate 42 albedo feedback 42 hydrosphere 42 Molnia 42 explorer Pen Hadow 42 Spitsbergen 42 Jane Ferrigno 42 C# atmospheric concentrations 42 radar altimetry 42 glacial interglacial cycles 42 -# degrees Fahrenheit [002] 42 snowcover 42 Toba eruption 42 igneous rocks 42 heavily cratered 42 biosphere 42 isotope composition 42 martian atmosphere 42 explorer Ernest Shackleton 42 Cambrian Period 42 Saturn moons 42 phytoplankton populations 42 tectonics 42 exosphere 42 melting icecaps 42 bonebed 42 speleothems 42 Neutron stars 42 ejecta blanket 42 Late Paleozoic 42 Laurentide 42 Otto Bliesner 42 Vatnajokull 42 routinely sloughed off 42 seafloor sediment 42 hauling sledge 42 sediment 42 Jurassic sandstone 42 Ozone depletion 42 coral reef 42 Younger Dryas 42 colliding tectonic plates 42 subsurface 42 stalagmite 42 perma frost 42 satellite altimetry 42 narwhal 42 walrus polar bears 42 Holocene epoch 42 tropics 42 Norwegian polar explorer 42 Gamburtsev 42 yedoma 42 Ny Alesund 42 COROT 7b 42 Jevrejeva 42 neutrino telescope 42 spacetime 42 earths 42 Ammassalik Island 42 acidifying oceans 42 microbial ecosystems 42 Sinus Meridiani 42 plankton 42 Weddell seals 42 neutron star 42 Martian dust 42 Terre Adelie 42 tectonically 42 rifting 42 Quelccaya ice cap 42 polar bears 42 basalts 42 terrestrial biosphere 42 galaxy formation 42 upwellings 42 phyllosilicate 42 severe droughts 42 ocean depths 42 solidified lava 42 EarthScope 42 melting glaciers disappearing 42 warmer wetter 42 solar corona 42 anthropogenic CO2 emissions 42 multi decadal 42 Sir Ernest Shackleton 42 storied snows 42 landforms 42 tectonic 42 Patagonian glaciers 42 Permian Triassic extinction 42 thermal inertia 42 volcanic cone 42 methane clathrates 42 Martian crust 42 Mount Kilimanjaro glaciers 42 Columbia Icefield 41 amplifying feedbacks 41 Le Quéré 41 glacier retreat 41 polar explorer Roald Amundsen 41 abyssal plains 41 subduction zone 41 carbon dioxide 41 anomalously warm 41 Serreze 41 sea 41 Tharsis Rise 41 oceanographers 41 glacial lakes 41 axial tilt 41 Laptev Sea 41 dolerite 41 atmospheric chemistry 41 worsening droughts 41 calving glaciers 41 asteroid impacts 41 glaciers recede 41 Volcanic eruptions 41 olivine 41 tropical forests 41 paleoclimatology 41 methane hydrate 41 Gusev crater 41 coral calcification 41 von Frese 41 Cambrian Ordovician 41 Qinghai Tibet Plateau 41 inner asteroid belt 41 Pu'u O'o 41 pikas 41 oceanic plates 41 molten rock 41 cosmic ray flux 41 Climate Experiment GRACE 41 Martian polar 41 Svalbard archipelago 41 basalt 41 icebound 41 meteorite fragments 41 moon permanently shadowed 41 Mata Volcano 41 paleoenvironmental 41 geoid 41 Kasatochi 41 mass extinction 41 Cassin auklet 41 Late Jurassic 41 Glaciers melting 41 surface hoar 41 lunar soil 41 anticlines 41 Quaternary 41 manmade CO2 emissions 41 abyssal 41 magnetic reconnection 41 continental rifting 41 drifting ice floe 41 faunas 41 mammoths 41 Polar explorers 41 megafloods 41 crustal plates 41 Cayman Trough 41 ocean salinity 41 tropical coral reefs 41 Earthlike planets 41 calderas 41 #.#C #.#C 41 GtC 41 Earths crust 41 Weiqing Han 41 meteorite bombardment 41 tundra 41 Abdalati 41 geological 41 evaporite 41 Olympus Mons 41 Neukum 41 Super Earths 41 Carbon dioxide 41 moon Europa 41 permafrost degradation 41 Anvers Island 41 sunspot activity 41 ice floes 41 lowermost mantle 41 peatlands 41 corals 41 comb jellyfish 41 icefalls 41 ice crystals 41 Drygalski ice tongue 41 hydrated minerals 41 Ice Ages 41 polar craters 41 lava domes 41 geological timescale 41 meteoritic material 41 Martian crater 41 Kittlitz murrelet 41 Maastrichtian 41 volcanic caldera 41 seawater pH 41 comets orbiting 41 Extinctions 41 supercooling 41 Cascadia subduction zone 41 Melting Glaciers 41 Antarctic Circumpolar Current 41 increased storminess 41 Chicxulub impact 41 lava flowed 41 tropospheric temperature 41 methane 41 ostracodes 41 Burgess Shale 41 mantle lithosphere 41 meteor impacts 41 steppe mammoth 41 tephra 41 supervolcano eruption 41 arctic tundra 41 Ordovician 41 supergene copper 41 hydrothermal fluid 41 Mertz Glacier 41 receding glacier 41 warship Vasa 41 Andreas Muenchow 41 Cretaceous periods 41 lunar craters 41 volcanically active 41 landmasses 41 planet magnetosphere 41 lunar magma 41 oceanic lithosphere 41 volcanic eruptions 41 Kay Bidle 41 advection 41 Geophysical Research 41 ESA Envisat satellite 41 Nature Geosciences 41 missing baryons 41 coolings 41 chlorine monoxide 41 moon gravitational pull 41 ocean eddies 41 Carteret Islands 41 caldera 41 interstellar clouds 41 glaciology 41 Keeling Curve 41 volcano Olympus Mons 41 Yellowstone supervolcano 41 equatorial Pacific Ocean 41 icebergs drifting 41 emperor penguin 41 degrees Fahrenheit warmer 41 Paleocene Eocene Thermal Maximum 41 lava flows 40 overthrust 40 ice bergs 40 RV Polarstern 40 Sarahsaurus 40 Coral reefs 40 geodynamics 40 Arctic explorer 40 Chukchi seas 40 grabens 40 NASA rovers Spirit 40 Boreal forests 40 coastal upwelling 40 chondrites 40 salinity 40 Sheldon Drobot 40 Straneo 40 Little Ice Age 40 atmospheric ozone 40 Cryogenian period 40 Untersee 40 Emperor penguin 40 superheavy elements 40 magnetic monopoles 40 hidden crevasses 40 Arabia Terra 40 interstellar dust grains 40 Paleogene 40 lakebed sediments 40 underwater volcanoes 40 carbonate ion 40 Arctic seabed 40 Endurance crater 40 Martian landscape 40 km3 40 journal Geology 40 oxygen isotope 40 CO2 40 matter antimatter asymmetry 40 surface temperatures SSTs 40 Ground penetrating radar 40 neutrino detectors 40 palaeo 40 marine organisms 40 airglow 40 Gravitational waves 40 Antarctic penguins 40 Adelie penguin 40 isotopic composition 40 Eocene 40 icy hydrates 40 seafloor methane 40 stromatolite 40 underwater volcanos 40 KT extinction 40 tectonic movements 40 Pacific Gyre 40 planet Gliese #g 40 melt glaciers 40 volcanic basalt 40 river deltas 40 #.#C [002] 40 equatorial Pacific oceans 40 Yellowstone Caldera 40 lightless depths 40 melting glacier 40 penguin colonies 40 Alaskan tundra 40 marine ecosystem 40 microfossils 40 primate evolution 40 kept mountainous snowbanks 40 aquatic ecosystems 40 large oceanic plateaus 40 zircon crystals 40 Mount Bosavi 40 Anthony Barnosky 40 NASA satellites orbiting 40 Acidification 40 astrophysical 40 Pedro Martinez Arbizu 40 equatorial plains 40 anthropogenic greenhouse gases 40 infalling gas 40 geologically 40 Enceladus 40 tectonic uplift 40 Joan Kleypas 40 geophysicist Scott Luthcke 40 marine invertebrates 40 distant supernovae 40 Grunion disappearance 40 Anisotropy Probe 40 gigatonne 40 Nature Geoscience journal 40 floods droughts heatwaves 40 Helheim 40 glacial geology 40 Jan Gunnar Winther 40 bleached corals 40 Pen Hadow 40 magnetotail 40 oceanic currents 40 ACEX 40 Fomalhaut b 40 hominid fossils 40 oxidized mercury 40 whaleback 40 crevasses 40 supercomputer simulations 40 Upper Jurassic 40 Lake Yoa 40 foraminifera 40 glaciers retreating 40 Late Ordovician 40 supercontinent Pangea 40 temperate rainforest 40 Disko Bay 40 mountain lava dome 40 extinct volcanoes 40 Ice Coring 40 Antarctic Territory 40 midlatitude 40 Earth ozone layer 40 research vessel Polarstern 40 tiny single celled 40 Woolly mammoths 40 Endurance Crater 40 melted glacial 40 intraplate 40 Tunguska meteorite 40 katabatic winds 40 goethite 40 Saturn moon 40 temperature reconstructions 40 Malte Meinshausen 40 radiocarbon 40 P/# A2 40 Polar bears 40 Chasma Boreale 40 Rahmstorf 40 Arctic ice floe 40 fossilized skull 40 heliosphere 40 Lamont Doherty 40 megathrust earthquake 40 post perovskite 40 Antarctic explorer 40 krill 40 Arctic tundra 40 coelacanths 40 Doomsday Seed Vault 40 Antarctic Dry Valleys 40 Magnetic Pole 40 Cryosat 40 intertidal 40 beneath Merapi lava 40 Cretaceous Tertiary 40 subduction earthquake 40 Kristin Laidre 40 hydrothermal activity 40 martian rocks 40 fabled Northwest Passage 40 tectonic activity 40 interstellar cloud 40 crustal plate 40 diatom 40 Bramley Murton 40 layered bedrock 40 biogeochemical cycles 40 cosmic rays 40 calcium carbonate shells 40 Vredefort 40 craton 40 streamflow 40 polynyas 40 snowpack 40 laser altimeter 40 coral ecosystems 40 Biogeography 40 Bylot Island 40 icy moons 40 Nazca plate 40 basaltic 40 Medieval Warming Period 40 Martian terrain 40 fossilisation 40 Martian dunes 40 Tad Pfeffer 40 aragonite 40 McMurdo Base 40 chlorine peroxide 40 Puu Oo 40 Paleozoic Era 40 #.#C [004] 40 Amazonian forests 40 supernova explosions 40 Neogene 40 mineral olivine 40 phyllosilicates 40 antimatter atoms 40 Homo sapiens evolved 40 underground geological formations 40 ecosystems 40 volcano lava dome 40 Von Frese 40 Martian atmosphere 40 Cosmic Microwave Background 40 fault scarps 39 Shad O'Neel 39 planet HD #b 39 #.#oC [001] 39 seismogenic 39 fine grained sediment 39 Jovian moon 39 sulphate aerosols 39 albedo 39 interglacials 39 Mars Analog Svalbard 39 permanently shadowed 39 Beringia 39 Shiveluch 39 Nunavut Territory coal 39 Eyjafjallajökull glacier 39 Jellyfish swarm northward 39 polar bear habitat 39 paleoclimatologists 39 Gerald Meehl 39 heatwaves floods droughts 39 Carboniferous 39 WMO 39 Sedimentary 39 Laurasia 39 southern supercontinent 39 turbidites 39 Gangotri glacier 39 CryoSat mission 39 Higgs particle 39 Great Aletsch Glacier 39 subantarctic 39 Jurassic limestone 39 smoggy atmosphere 39 supercontinent Pangaea 39 floe 39 fossilized coral 39 braincase 39 mineralogy 39 finely layered 39 Saturn Enceladus 39 Ozone Hole