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(Click for frequent words.) 66 receding glaciers 63 glaciers 61 shrinking glaciers 61 glacial retreat 60 melting glaciers 60 glaciers retreated 59 subglacial lakes 59 receding glacier 58 glaciers receded 58 alpine glaciers 58 Jakobshavn 57 glacial melting 57 glacial melt 57 melting glacier 57 melting permafrost 57 polar icecap 57 glacier 57 Laurentide ice sheet 57 Alpine glaciers 57 disappearing glaciers 56 thawing permafrost 56 mountain glaciers 56 glacier calving 56 meteorite impacts 56 glaciers recede 56 icebergs calving 55 Greenland ice 55 cinder cones 55 tropical glaciers 55 glaciations 55 icefields 55 permafrost 55 Melting glaciers 55 Laurentide Ice Sheet 55 Kilimanjaro glaciers 54 Greenland icecap 54 Martian volcanoes 54 whitebark pines 54 Toba eruption 54 retreating glacier 54 boreal regions 54 seafloor sediments 54 glaciers melted 54 Amundsen Sea 54 melting ice 54 Himalayan river basins 54 glaciers melting 54 terminal moraine 53 iceberg calving 53 Antarctic glaciers 53 sediments deposited 53 icesheets 53 McMurdo Dry Valleys 53 icecaps 53 Cryogenian period 53 cryosphere 53 glaciers melt 53 methane seeps 53 atmospheric CO2 levels 53 marine sediments 53 glacier melt 53 glacier retreat 53 Holocene epoch 53 glaciers retreating 53 Amundsen Sea Embayment 53 Alaskan glaciers 53 polar ice 53 glacier melts 53 Cryogenian 52 Siple Dome 52 coccolithophores 52 glacial ice 52 Greenland icesheet 52 moraines 52 isostatic rebound 52 Brigham Grette 52 paleoclimatic 52 Arctic icecap 52 sedimentary layers 52 deglaciation 52 deepwater corals 52 glacial lakes 52 ocean basins 52 sedimentary deposits 52 permafrost degradation 52 subglacial 52 asteroid impacts 52 meltwater 52 supervolcanoes 52 glaciation 52 Vatnajökull 52 lake sediments 52 iridium layer 52 sub glacial lakes 51 flood basalts 51 Antarctic ice 51 icecap 51 Greenland Antarctica 51 permafrost melts 51 Puijila 51 landforms 51 melting icebergs 51 speleothems 51 Kasatochi 51 tectonic plate movements 51 severe droughts 51 paleomagnetic 51 mammal extinctions 51 Quaternary Period 51 thawing tundra 51 Norris Geyser Basin 51 eskers 51 Polar Regions 51 Hesperian Epoch 51 extinct volcanoes 51 Permian extinction 51 Transantarctic Mountains 51 polar regions 51 Tharsis Rise 51 Paleocene Eocene Thermal Maximum 50 melting glacial 50 volcanoes erupt 50 glacial moraines 50 Dry Valleys 50 Martian gullies 50 mountain snowpacks 50 continental drift 50 glacier melting 50 warm interglacial periods 50 yardangs 50 Pleistocene Ice Age 50 upland forests 50 Earths crust 50 glacial meltwater 50 Severe droughts 50 atmospheric methane 50 hydrological cycle 50 Greenland glaciers 50 Kittlitz murrelet 50 Antarctic glacier 50 Lake Untersee 50 Jakobshavn Isbrae 50 glacial 50 Harding Icefield 50 Qinghai Tibet plateau 50 atmospheric carbon dioxide 50 Nisqually Glacier 50 glacial earthquakes 50 glacial interglacial 50 moraine 50 terrestrial ecosystems 50 KT boundary 50 tidewater glaciers 50 seabed sediments 50 Caloris Basin 50 Antarctica 50 ejecta blanket 50 interglacial period 50 Quelccaya 50 basaltic rocks 50 Service WGMS 50 icefalls 50 glacially carved 50 species extinctions 50 Robert Bindschadler 50 icefield 50 climatic variability 50 worsening droughts 49 eroding shorelines 49 karst limestone 49 barren tundra 49 glaciated 49 acidification 49 Overfishing pollution 49 meteor impacts 49 Chasma Boreale 49 Eocene epoch 49 oceanic circulation 49 Arctic permafrost 49 greenhouse warming 49 Okmok Caldera 49 Velicogna 49 Ozone depletion 49 phyllosilicate 49 permafrost melting 49 Volcanic eruptions 49 Thawing permafrost 49 cryovolcanism 49 past boninite lavas 49 explosive volcanism 49 Qinghai Tibetan plateau 49 Ice Ages 49 cyanobacterial blooms 49 wolverine habitat 49 Quelccaya ice cap 49 permafrost thaws 49 towering icebergs 49 interglacial periods 49 melting icecaps 49 polar caps 49 geomorphic 49 Permian Period 49 Warmer oceans 49 tectonic uplift 49 warmings 49 Himalayan Glaciers 49 subalpine forest 49 icesheet 49 freshwater ecosystems 49 Nunavut Territory coal 49 undersea volcanoes 49 seafloors 48 poleward shift 48 alpine ecosystems 48 groundwater seepage 48 volcanic lava flows 48 mass extinctions 48 Konrad Steffen 48 shadowed craters 48 Warmer seas 48 GLOF 48 ocean acidification 48 brachiopods 48 ancient lava flows 48 Snowball Earth 48 seamounts 48 Lake Yoa 48 marine plankton 48 Antarctic Peninsula 48 snowcaps 48 underground aqueducts 48 topsoil erosion 48 lunar craters 48 Bering Glacier 48 invertebrate populations 48 waterfowl habitats 48 Siberian permafrost 48 Diporeia 48 glacial lake 48 arctic tundra 48 Martian craters 48 circumpolar Arctic 48 abyssal plain 48 springtime ozone 48 upwellings 48 katabatic winds 48 polar icecaps 48 Khumbu glacier 48 Porcupine caribou 48 volcanism 48 Greenland Ice 48 waterbird species 48 Appy Sluijs 48 fissure eruption 48 fault scarps 48 Gakkel Ridge 48 Cenozoic Era 48 temperate forests 48 Ontario Lacus 48 abyssal plains 48 Perito Moreno 48 mineral olivine 48 called lobate scarps 48 Mount Kilimanjaro glaciers 48 refugia 48 western Antarctic Peninsula 48 volcanic basalt 48 tropical troposphere 48 tectonic activity 48 palaeoclimate 48 Norway Svalbard 48 clathrates 48 Ice Age glaciers 48 austral summer 48 lunar crust 48 warm blooded vertebrates 48 Keeling Curve 48 Thorthormi 48 Pastoruri 48 Toolik Lake 48 Fram Strait 48 glacial silt 48 warmer wetter winters 48 Antarctic ozone 48 Noctilucent clouds 48 fearsome Tyrannosaurus rex 48 golden toad 48 ice bergs 48 acidic oceans 48 Greenland glacier 48 swirling dust devils 48 windblown sand 48 polar oceans 48 Andean glaciers 48 spectacled eider 47 sequoia groves 47 marine ecosystems 47 Tropical rainforests 47 Pacific walruses 47 Ayles Ice Shelf 47 ancient petroglyphs 47 basaltic rock 47 conodonts 47 Soil erosion 47 basalt cliffs 47 glacial geology 47 deep convective clouds 47 glacial shrinkage 47 Canada Boreal Forest 47 Ted Scambos 47 cataclysmic eruption 47 subalpine 47 Laetoli 47 surface hoar 47 Palaeocene Eocene Thermal Maximum 47 ancient supercontinent 47 subduction zone earthquake 47 Glaciers 47 Yangtze basin 47 reef habitats 47 glacial cycles 47 Inuit elders 47 harlequin frogs 47 ecoregions 47 chloride concentrations 47 melting polar 47 Adelie penguins 47 Arctic Ocean 47 glacier shrinkage 47 oceans 47 Antarctic peninsula 47 Rwenzori Mountains 47 Harmful algal blooms 47 Neoproterozoic 47 perma frost 47 Hesperian epoch 47 sediment cores 47 Vatnajokull 47 river deltas 47 nitrogen deposition 47 melting 47 Gondwana supercontinent 47 pliosaur ferocious predator 47 meteorite bombardment 47 Bellingshausen Sea 47 biodiversity hotspot 47 colliding tectonic plates 47 heavier rainfalls 47 bristlecone pines 47 subarctic 47 Shishmaref 47 delicate ecosystems 47 Amazonian rainforest 47 biologically diverse ecosystems 47 subalpine meadows 47 Rignot 47 volcanoes 47 crustal movements 47 volcanic activity 47 landmasses 47 Candor Chasma 47 earths crust 47 Petermann glacier 47 sheet Summerhayes 47 biota 47 esker 47 Mariana Arc 47 faunas 47 Boreal forests 47 polynya 47 volcanic eruptions 47 Late Paleozoic 47 arctic 47 bedrock outcrops 47 streambank erosion 47 habitat fragmentation 47 midlatitude 47 Yellowstone Caldera 47 karst topography 47 Tibetan Plateau 47 Chicxulub impact 46 Martian dunes 46 microbialites 46 lava flows 46 temperate rainforest 46 Patagonian glaciers 46 Amazonian forests 46 biotopes 46 mantle convection 46 Hellas Basin 46 Redoubt Volcano 46 calderas 46 biogeochemical processes 46 seacoasts 46 paleoclimate 46 Exit Glacier 46 Wilkins Ice Shelf 46 stalagmites 46 hydrated minerals 46 lake sediment cores 46 mid latitudes 46 trophic cascades 46 Stratospheric ozone 46 Tunguska meteorite 46 KT extinction 46 volcanic magma 46 lavas 46 erosional 46 moulins 46 Melting ice 46 climate modelers 46 stratospheric ozone 46 walruses congregated 46 Glaciologists 46 cratons 46 drumlins 46 plate tectonics 46 phytoplankton bloom 46 oceanic crust 46 Chicxulub asteroid 46 teepee rings 46 cyclonic storms 46 Ozone layer 46 Weddell Sea 46 supercontinent Pangaea 46 southern latitudes 46 planetary warming 46 Bindschadler 46 Cretaceous Tertiary KT 46 Himalayan glacier 46 tundra vegetation 46 tundra 46 Kittlitz murrelets 46 Eyjafjallajökull erupted 46 Antarctic icecap 46 acidifying oceans 46 Juneau Icefield 46 Devils Hole pupfish 46 oxidized mercury 46 ivory gull 46 sagebrush steppe 46 Syrtis Major 46 Himalaya glaciers 46 Coral bleaching 46 sulfur isotope 46 massifs 46 megafauna 46 seafloor sediment 46 tectonic movements 46 glacial landforms 46 Gangotri glacier 46 meltoff 46 Jay Lawrimore chief 46 pine beetle outbreaks 46 bristlecones 46 biodiversity hotspots 46 fossilized creatures 46 ferric oxides 46 lava flowing 46 supercontinent 46 Pacific Gyre 46 phytoplankton blooms 46 eroding coastlines 46 sulfur isotopes 46 sandstone buttes 46 Cambrian Period 46 caribou herds 46 Last Glacial Maximum 46 Krakatoa eruption 46 grabens 46 lava eruptions 46 marine ecologists 46 Svalbard archipelago 46 gyres 46 treeless tundra 46 walrus polar bears 46 Sumatra Andaman earthquake 46 volcanic caldera 46 Dr van Ommen 46 Dominguez Escalante 46 snowcover 46 lava flowed 46 Arctic 46 Scambos 46 lava tubes 46 storied snows 46 amphibian declines 46 talus slopes 46 magnetic substorms 46 coastal headlands 46 sandstone formations 46 rafted debris 46 alpine tundra 46 thermal vents 46 anthropogenic CO2 emissions 46 Petermann Glacier 46 lichens 46 Miocene epoch 46 toxic tailing ponds 46 limestone karst 46 dwarf birch 46 microfossil 46 aerosol concentrations 46 Bylot Island 46 Jakobshavn Glacier 46 permafrost soils 46 granite outcroppings 46 Plate tectonics 46 dogsled expedition 46 Kerguelen Plateau 46 karst formations 46 evergreen forests 46 Chazy Reef 46 Lake Champlain basin 46 Wrangel Island 46 strontium isotope 45 anthropogenic climate 45 Natalie Mahowald 45 Caloris basin 45 Khumbu Glacier 45 Ilulissat glacier 45 martian rocks 45 dwelling organisms 45 Nature Geosciences 45 outlet glaciers 45 stratospheric ozone layer 45 biodiverse ecosystems 45 heathlands 45 Arctic tundra 45 saber tooth cats 45 geological timescale 45 coral skeletons 45 mud volcanoes 45 Qinghai Tibet Plateau 45 Molnia 45 tidewater glacier 45 Burgess Shale 45 Zeebe 45 phyllosilicates 45 sedimentary layer 45 subsurface ocean 45 Gamburtsev 45 Eric Rignot 45 Uganda Rwenzori Mountains 45 active volcanism 45 horseshoe shaped crater 45 megadroughts 45 Pleistocene epoch 45 headwater stream 45 rock cairns 45 karst caves 45 geology paleontology 45 Ngauruhoe 45 lodgepole pine forest 45 Tharsis Montes 45 climate modellers 45 Sinus Meridiani 45 Great Aletsch Glacier 45 Adélie penguins 45 Jupiter moons Europa 45 deforestation desertification 45 coral reefs 45 Amazonian forest 45 Neogene 45 Cretaceous Tertiary 45 Punta Tombo 45 mussel populations 45 Antarctic Circumpolar Current 45 amphibian populations 45 temperate rainforests 45 Christian Marcussen 45 interferograms 45 igneous rocks 45 Ocean acidification 45 Younger Dryas 45 moving icefields 45 Mount Mazama 45 freshwater habitats 45 Pleistocene Epoch 45 mangrove ecosystems 45 molten magma 45 reef ecosystems 45 polar vortex 45 Earth crust 45 Domoic acid neurotoxin 45 Mass strandings 45 lava flow 45 limestone bedrock 45 coldest driest 45 Klekociuk 45 tuffaceous rocks 45 lodgepole forests 45 volcanic mudflow 45 Shad O'Neel 45 tarns 45 crustal thickness 45 Yellowstone caldera 45 sediments 45 Perito Moreno glacier 45 glacial erratics 45 Steep slopes 45 Disko Bay 45 oceanic currents 45 megafloods 45 Terre Adelie 45 Puu Oo 45 anthropogenically 45 forested watersheds 45 Aletsch 45 Eocene Epoch 45 Hunt Ice Shelf 45 carbonate minerals 45 boreal ecosystems 45 sandstone bluffs 45 vertebrate fossil 45 hypoxic zone 45 lodgepole forest 45 Ellesmere Island 45 Siberian Traps 45 glaciological 45 frazil ice 45 lichen 45 Antarctic 45 silicate rocks 45 Shrinking glaciers 45 carbon dioxide concentrations 45 geomorphology 45 bark beetle infestations 45 Antarctic icebergs 45 auroral displays 45 coastal lowlands 45 melt Himalayan glaciers 45 Ny Alesund 45 earth crust 45 Seagrasses 45 streambanks 45 mass extinction 45 Yellowstone supervolcano 45 hydrothermal activity 45 lenticular clouds 45 crustal plate 45 famous Krakatau volcano 45 tropical coral reefs 45 forams 45 Boreal forest 45 methane hydrates 45 floods droughts 45 Paleogene 45 pine bark beetle 45 atmospheric aerosols 45 peat bogs 45 ponderosa pine forests 45 hydrologic cycle 45 boreal forests 45 Shasta glaciers 45 tigers roamed 45 Laramidia 45 midlatitudes 44 basalt rock 44 toxic algae blooms 44 Melting Arctic 44 Andreas Schild 44 Ediacaran 44 Tulaczyk 44 tropical subtropical 44 anomalously warm 44 icy comets 44 polar bears seals 44 Pachauri IPCC 44 Pleistocene Age 44 geologic 44 reef organisms 44 giant sequoia trees 44 amplification Zwally 44 volcanic craters 44 sauropodomorphs 44 endemic species 44 Serengeti ecosystem 44 Di Achille 44 Alpine glacier 44 eucalypt forests 44 Antarctic Ice 44 Wilfried Haeberli 44 marshes swamps 44 Nares Strait 44 increased storminess 44 heatwaves floods droughts 44 heatwaves droughts 44 rampant deforestation 44 invasive nonnative 44 snowmelts 44 Mauna Loa volcano 44 HiRISE images 44 boreal 44 thrust faulting 44 crustal 44 migratory corridors 44 Herschel Crater 44 interglacial 44 boreal forest 44 turbidites 44 marbled murrelets 44 polar bears 44 geohazards 44 flora fauna 44 Ordovician extinction 44 pollinator populations 44 cosmic collisions 44 orangutan populations 44 Garibaldi Provincial 44 Subduction zones 44 refrozen ice 44 Irrawaddy dolphin 44 deltaic 44 gigatonnes 44 lava domes 44 Pleistocene 44 steam vents 44 atmospheric deposition 44 Quino checkerspot butterfly 44 global warming 44 climatic variations 44 Surtsey 44 Halemaumau 44 Ithaca Chasma 44 Rockfalls 44 supercontinent Pangea 44 lodgepole pine forests 44 Grinnell Glacier 44 Denisova cave 44 moon gravitational pull 44 southernmost continent 44 blanket bog 44 freshwater streams 44 crossbedding 44 spruce fir forest 44 biosphere 44 manmade CO2 emissions 44 unlogged forests 44 Saharan Desert 44 snow melt 44 ecosystems 44 deserts jungles 44 stratospheric ozone depletion 44 Jellyfish swarm northward 44 Maunder minimum 44 Explosive eruptions 44 galactic collisions 44 Plesiosaurs 44 halite 44 glacial boulders 44 mantle lithosphere 44 aquatic ecosystems 44 damming rivers 44 fumarole 44 Kharecha 44 erupting lava 44 seals walrus 44 Shivaliks 44 trophic cascade 44 Sermilik Fjord 44 evaporite deposits 44 Theropods 44 Oligocene epoch 44 atmospheric pollutants 44 large oceanic plateaus 44 lahars 44 Prolonged droughts 44 coastal erosion 44 encroaching deserts 44 calving glacier 44 Cenozoic 44 penguin colonies 44 sulphate aerosols 44 freshwater springs 44 DiTorrice 44 coastal marine ecosystems 44 frogs salamanders 44 volcanic mudflows 44 meridional overturning circulation 44 Olympus Mons 44 hydrological cycles 44 murrelets 44 toxic algal blooms 44 shrinking polar 44 snowmelt 44 equatorial latitudes 44 erupting volcanoes 44 Jay Zwally 44 vanishing glaciers 44 decaying vegetation 44 volcanic vents 44 Algal blooms 44 layered outcrops 44 phreatic 44 Gregory Asner 44 palaeo 44 glacial moraine 44 uncontacted tribe 44 fine grained sediment 44 Martian landscape 44 loess 44 atmospheric CO 44 fossilized skeletons 44 Snake River Plain 44 Triassic Period 44 Ross Ice Shelf 44 resource depletion 44 snowcap 44 axial tilt 44 Martian meteorite 44 supercomputer simulations 44 salinization 44 aquatic insect 44 sedge grass 44 magnetic polarity 44 Late Cretaceous Period 44 assassin spiders 44 coral reef degradation 44 British Antarctic Survey 44 tundras 44 continental crust 44 islands fjords 44 Mars Squyres 44 freshwater marsh 44 brittle deformation 44 coastal mangrove forests 44 Aletsch glacier 44 mantle plumes 44 glaciers icebergs 44 tabular icebergs 44 aspen forests 44 Josefino Comiso 44 overhunting 44 asteroid collisions 44 meteorite craters 44 Lake Cheko 44 lithosphere 44 Valles Marineris canyon 44 satoyama 44 Warming temperatures 44 mass beachings 44 glaciated peaks 44 Methane hydrates 44 hotter summers 44 Deccan Traps 44 shadowy craters 44 frog spawn 44 bonebed 44 Antarctic Ice Shelf 44 paleoclimatology 44 Larsen Ice Shelf 44 shell middens 44 glaciologists 44 Martian rocks 44 Ignatius Rigor 44 Saharan cheetah 44 geological strata 44 southern supercontinent 44 glacier carved 44 polynyas 44 journal Meteoritics 44 diatom species 44 #.#C #.#F [003] 44 sulfate minerals 43 Chukchi Cap 43 clogging waterways 43 ocean sediment cores 43 Norwegian polar explorer 43 anthropogenic warming 43 subpolar 43 methane burps 43 sedimentary rock 43 soil erosion 43 volcanic lava 43 stalagmite 43 biome 43 Jakobshavn glacier 43 Alaskan tundra 43 asthenosphere 43 Algae blooms 43 craggy granite 43 Ninglick River 43 pteropod 43 Noachian era 43 dust mote 43 marine biota 43 Roadless areas 43 cenospheres 43 Ruwenzori Mountains 43 comet nuclei 43 fragile marine ecosystems 43 driest continent 43 interstellar boundary 43 steppe mammoth 43 Luthcke 43 blister rust 43 stratovolcano 43 Stegodon 43 wetland ecosystem 43 migratory waterbirds 43 permafrost thaw 43 paleoclimatologists 43 lowland forests 43 Lake Vostok 43 polar craters 43 paleoenvironmental 43 Cretaceous extinction 43 landsliding 43 seafloor habitats 43 Davidson Seamount 43 methane hydrate deposits 43 previously unmapped 43 hydrothermal explosions 43 solidified lava 43 acid rain 43 freshwater 43 atmospheric CO2 43 fulmars 43 walruses 43 Permian Triassic boundary 43 Gamma ray burst 43 Gino Casassa 43 Lake Balkhash 43 polar latitudes 43 Carboniferous Period 43 Hine emerald dragonfly 43 Von Frese 43 overhanging cliffs 43 dieoff 43 mixed conifer forests 43 temperate latitudes 43 spherules 43 Paleozoic Era 43 meltwater stonefly 43 eutrophication 43 sediment 43 intertidal marsh 43 Ediacaran Period 43 crinoids 43 scarps 43 antarctic ice 43 coniferous forest 43 volcanic ridges 43 oxygen isotopes 43 infertile soils 43 Strathcona Fiord 43 Little Ice Age 43 equatorial forests 43 atmospheric CO2 concentrations 43 conifer forests 43 tropic regions 43 dammed rivers 43 Columbia Icefield 43 ice melts 43 Amazon rainforest 43 glaciology 43 mammals reptiles birds 43 Galapagos penguin 43 ozone depletion 43 Otto Bliesner 43 Eemian 43 continental rifting 43 rifting 43 beech forests 43 Sediment cores 43 karez 43 tiny single celled 43 ocean upwelling 43 coral habitats 43 thermal inertia 43 Auyuittuq National 43 sengi 43 ichthyosaur 43 greenhouse gas concentrations 43 Pavlof 43 foul smelling gases 43 acid sulphate soils 43 Pine beetles 43 ptarmigan 43 arctic permafrost 43 marshy islands 43 gullies 43 spinifex 43 Capricorn Glacier 43 ecoregion 43 heavily cratered 43 megafires 43 nonnative snakes 43 avian dinosaurs 43 Fluctuating temperatures 43 Yellowstone geysers 43 mammal lineages 43 Lava flows 43 Mud volcanoes 43 upwelling 43 biogeographical 43 algal mats 43 Nili Fossae