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(Click for frequent words.) 67 springtime ozone 65 Antarctic ozone layer 65 stratospheric ozone 62 stratospheric ozone layer 61 Earth ozone layer 59 Paleocene Eocene Thermal Maximum 58 ozone layer 57 atmospheric methane 57 Ozone layer 57 Sumatra Andaman earthquake 56 phytoplankton bloom 56 atmospheric CO2 levels 56 protective ozone layer 56 Tunguska explosion 56 Palaeocene Eocene Thermal Maximum 55 Antarctic stratosphere 55 hypoxic zone 55 Permian extinction 55 phytoplankton blooms 55 Greenland icesheet 55 carbon dioxide concentrations 55 Keeling Curve 54 sulfur isotope 54 Ocean acidification 54 glaciations 54 subglacial lakes 54 atmospheric ozone 54 Ordovician extinction 54 G#.# +#.# 54 TrES 4 54 gravitational radiation 54 Ozone depletion 54 icesheet 54 GRB #B 53 SN #C 53 Ulysses spacecraft 53 glacial retreat 53 Yellowstone supervolcano 53 Type Ia supernova 53 hydrological cycle 53 fissure eruption 53 mammal extinctions 53 ozone depletion 53 asteroid impacts 53 smallest exoplanet 53 ocean basins 53 Toba eruption 53 Fomalhaut b 53 SeaWiFS 53 megadrought 53 deep convective clouds 53 galaxy formation 53 Einstein relativity theory 53 subduction zone earthquake 52 KT extinction 52 Antarctic glaciers 52 Antarctic ice 52 Envisat satellite 52 permafrost degradation 52 Younger Dryas 52 ocean acidity 52 KT boundary 52 ozone 52 atmospheric carbon dioxide 52 WMAP satellite 52 ozone depleting gases 52 galaxy supermassive black 52 Alpine glaciers 52 Arctic permafrost 52 paleomagnetic 52 Snowball Earth 52 geomagnetic substorms 52 deglaciation 52 GJ #b [001] 52 Jupiter moon Io 52 cosmic ray intensity 52 Sumatran earthquake 52 supervolcano eruption 52 Last Glacial Maximum 52 Cumbre Vieja 52 subglacial 52 substorm 52 Ozone Layer 52 Hellas Basin 52 Great Oxidation Event 52 Supermassive black 52 glacial interglacial cycles 52 atmospheric CO 51 Greenland glacier 51 tropopause 51 sub glacial lakes 51 seafloor sediments 51 tectonic plate movements 51 iridium layer 51 polar vortex 51 climate modellers 51 Antarctic glacier 51 megafauna extinction 51 plankton blooms 51 Lake Vostok 51 species extinctions 51 anthropogenic CO 51 Landsat satellite 51 Hawking Radiation 51 anthropogenic greenhouse gas 51 multi decadal 51 sulfuryl fluoride 51 supervolcanoes 51 geoneutrinos 51 Cryogenian 51 QQ# 51 radar altimetry 51 Siberian permafrost 51 micro meteorites 51 sediments deposited 51 galaxy M# [002] 51 Arctic icecap 51 Permian Triassic 51 GJ#b 51 supercomputer simulations 51 Laurentide Ice Sheet 51 paleoclimate 51 sulphate aerosols 51 atmospheric circulations 50 flood basalts 50 megadroughts 50 strangelet 50 sunspot cycle 50 Indian Ocean Dipole 50 Cosmic Microwave Background 50 Greenland ice 50 midlatitudes 50 brightest supernova 50 Ozone Hole 50 Planck telescope 50 WASP #b 50 Hawking radiation 50 geological epoch 50 Gamma ray burst 50 coccolithophores 50 interannual variability 50 volcanic plumes 50 Klekociuk 50 glacial interglacial 50 Siberian Traps 50 Amundsen Sea Embayment 50 X ray telescopes 50 oceanic circulation 50 Type Ia supernovas 50 Tambora eruption 50 Thawing permafrost 50 greenhouse warming 50 Eyjafjallajökull eruption 50 glacial melting 50 Anisotropy Probe 50 lunar crust 50 vegetation greenness 50 gaseous planet 50 eruptive activity 50 supernova explosion 50 Coral bleaching 50 ozone layer shielding 50 aerosol concentrations 50 axial tilt 50 Cretaceous Tertiary 50 ENSO cycle 49 Ayles Ice Shelf 49 crustal movements 49 Fermi telescope 49 Orbiting Carbon Observatory OCO 49 ocean upwelling 49 GRB# 49 magnetic reconnection 49 megathrust earthquake 49 stratospheric ozone depletion 49 cosmic microwave radiation 49 glacier retreat 49 anthropogenic greenhouse gases 49 NASA Wilkinson Microwave 49 Greenland glaciers 49 sulfate aerosols 49 glacier shrinkage 49 GHG concentrations 49 cosmic collisions 49 NASA QuikScat satellite 49 Amundsen Sea 49 Neogene 49 Saturn moon Mimas 49 reionization 49 iceberg calving 49 Molten rock 49 paleoclimatic 49 icesheets 49 La Nià ± 49 Harmful algal blooms 49 glacial meltwater 49 Kepler #b 49 cosmic ray flux 49 glacier melting 49 Eyjafjallajökull erupted 49 atmospheric CO2 concentration 49 super perigee moon 49 undersea volcanic 49 Tharsis Rise 49 Keck Interferometer 49 COROT 7b 49 subsurface ocean 49 anomalously warm 49 solar irradiance 49 Permian Triassic extinction 49 sedimentary deposits 49 isostatic rebound 49 GRB # 49 El Niño Southern Oscillation 49 galaxy M# [001] 49 Wolf Rayet star 49 polar icecap 49 floods droughts heatwaves 49 Aqua satellite 49 Planck satellite 49 gamma ray burst 49 neutrino detectors 49 Antarctic Ozone 49 lunar perigee 49 smallest extrasolar planet 49 Late Ordovician 49 meteorite bombardment 49 #.#C above 49 planet magnetosphere 49 Tunguska meteorite 49 YORP effect 49 Omega Centauri 49 magnetic substorms 48 coral reef degradation 48 CO2 concentrations 48 kyr 48 Mount Tambora 48 anthropogenic warming 48 Ice Ages 48 coronal loop 48 Cosmic Microwave Background CMB 48 geoid 48 mass extinctions 48 volcanic plume 48 nucleosynthesis 48 Warmer drier weather 48 marine phytoplankton 48 greenhouse gas concentrations 48 Quadrantid meteor shower 48 microlensing 48 sunspot activity 48 tropospheric ozone 48 volcanism 48 Earth biosphere 48 AMSR E 48 World Meteorological Organisation 48 geomagnetic storm 48 mesosphere 48 jovian 48 surface temperatures SSTs 48 anthropogenic emissions 48 El Nino warming 48 galactic cosmic rays 48 Neoproterozoic era 48 dinosaur extinction 48 GtC 48 glaciation 48 Epsilon Aurigae 48 coral bleaching 48 teragrams 48 Hesperian Epoch 48 ESA XMM Newton 48 interglacial periods 48 Tunguska asteroid 48 Kuiper Belt object 48 Ordovician 48 airglow 48 Jay Lawrimore chief 48 Lauterbach charred corpse 48 auroral activity 48 heatwaves floods droughts 48 type Ia supernovae 48 orbiting observatories 48 infrared telescope 48 satellite altimetry 48 CryoSat satellite 48 anthropogenic carbon dioxide 48 Eemian 48 SN #gy 48 upwellings 48 X ray afterglow 48 Orbiting Carbon Observatory 48 Tunguska Siberia 48 geomagnetic activity 48 Mercury flyby 48 X ray emission 48 retreating glaciers 48 mantle convection 48 Laurentide ice sheet 48 Jakobshavn 48 infrared observatory 48 marine sediments 48 Ontario Lacus 48 Eocene epoch 48 solar corona 48 heatwaves floods 48 neutrino telescope 48 Dr van Ommen 47 warmings 47 Soufriere Hills Volcano 47 peat soils 47 explosive eruptions 47 Brigham Grette 47 Hesperian epoch 47 Velicogna 47 Earth ionosphere 47 coral reef biodiversity 47 ocean eddies 47 crustal thickness 47 Warmer seas 47 radiative transfer 47 mineral olivine 47 gigatonne 47 Himalayan river basins 47 Arches Cluster 47 harmful algal bloom 47 boreal regions 47 World Meteorological Organization 47 El Nio 47 Greenland Ice 47 dynamical processes 47 Saharan dust 47 Corot 7b 47 methyl chloroform 47 atmospheric circulation 47 alpine glaciers 47 cosmic cannibal 47 Melting glaciers 47 anthropogenically 47 CryoSat mission 47 Maastrichtian 47 equatorial Pacific Ocean 47 sulfate aerosol 47 mud volcano 47 Chicxulub impact 47 chlorine monoxide 47 Aram Chaos 47 galaxy redshift 47 biogeochemical 47 Oligocene epoch 47 glacial melt 47 hydrothermal activity 47 Arctic oscillation 47 Cretaceous Tertiary boundary 47 interglacial period 47 Shiveluch 47 Ground penetrating radar 47 WMO 47 Gusev crater 47 ° C warmer 47 Phanerozoic 47 downwelling 47 glacier melts 47 Cambrian Period 47 icecaps 47 magnetar 47 Zeebe 47 hoofed critters 47 Ross Ice Shelf 47 atmospheric CO2 concentrations 47 sulfur aerosols 47 #.#oC [001] 47 reef habitats 47 Eta Aquarid meteor shower 47 Antarctica EPICA 47 X ray pulses 47 glacier calving 47 permafrost thaw 47 sunspots 47 toxic alga 47 calderas 47 Milankovitch cycles 47 copper mineralization intersected 47 icecap 47 WISE telescope 47 runaway greenhouse 47 Great Observatories Origins 47 cryovolcanism 47 circumstellar disk 47 impactors 47 Herschel telescope 47 GOCE satellite 47 poleward shift 47 solar flares 47 planetary warming 47 X ray observatory 47 RS Ophiuchi 47 Rossby waves 47 Gamburtsev 47 atmospheric CO2 47 mountain glaciers 47 atmospheric concentrations 47 nitrogen deposition 47 atmospheric aerosols 47 atmospheric oceanic 47 Quaternary Period 47 Jakobshavn Isbrae 47 polar mesospheric clouds 47 tectonic movements 47 planetary Transits 47 Guatemala sinkhole 47 Tunguska Event 47 glacial cycles 47 Martian volcanoes 47 methane hydrates 47 Jay Zwally 47 microlensing events 46 Atlantic Multidecadal Oscillation AMO 46 particle smasher 46 climate modelers 46 HARPS spectrograph attached 46 Landsat satellites 46 hydrologic cycle 46 Noaa 46 periodic dimming 46 glaciers retreated 46 meteorite impacts 46 Late Paleozoic 46 droughts heatwaves floods 46 celestial phenomena 46 Greenhouse Gas Bulletin 46 coronal holes 46 Kilimanjaro glaciers 46 NSIDC 46 Luthcke 46 compressional 46 Himalayan glaciers melting 46 GISS analysis 46 Northridge temblor 46 XTE J# 46 Jakobshavn Glacier 46 basaltic rocks 46 cyclonic storms 46 meteoritic material 46 tephra dam 46 Paleocene Eocene 46 yardangs 46 Antarctic icecap 46 Yellowstone caldera 46 teleconnections 46 Galileo spacecraft 46 upper troposphere 46 Convection Rotation 46 ultra violet radiation 46 carbonate minerals 46 amphibian populations 46 WD5 46 Maunder minimum 46 E ELT 46 Galaxy Evolution 46 Carbon dioxide CO2 46 Paleogene 46 Cambrian explosion 46 gigaton 46 CMB radiation 46 hurricane landfalls 46 martian atmosphere 46 Yellowstone Caldera 46 tailpipe gases 46 solar nebula 46 Saturnian 46 tropospheric temperature 46 Antarctic icesheet 46 toxic algal blooms 46 polar caps 46 NuSTAR 46 Hadean Eon 46 preindustrial temperatures 46 crustal 46 perigee moon 46 Tropical deforestation 46 seabed sediments 46 Kharecha 46 ultraluminous galaxy 46 interferometric synthetic aperture radar 46 episodic tremor 46 Kilauea Volcano 46 total solar irradiance 46 lowermost mantle 46 Warming temperatures 46 Martian dust 46 heatwaves droughts 46 ultraviolet radiation emitted 46 meteoroid 46 Hubble Space Telescope HST 46 moon permanently shadowed 46 Venusian atmosphere 46 Qinghai Tibet plateau 46 photochemical smog 46 volcano lava dome 46 supersymmetric particles 46 particle collisions 46 penumbral lunar eclipse 46 Deccan volcanism 46 Miocene epoch 46 SNR #-#.# 46 gravitational waves 46 Neoproterozoic 46 Antarctica 46 galactic clusters 46 Cygnus X 46 Viking Lander 46 emits X rays 46 Warmer oceans 46 sunspot cluster 46 cryosphere 46 accretion disks 46 Plate tectonics 46 MN4 46 Cat Paw Nebula 46 polar stratospheric 46 decadal scale 46 Schladow 46 thermosphere 46 planetwide 46 Ediacaran 46 matter antimatter asymmetry 46 tropospheric 46 exoplanetary 46 gravitational lens 46 sedimentary layers 46 tectonic stresses 46 Wilkins Ice Shelf 46 Kilauea summit 46 AGNs 46 superstorm 46 Total Ozone Mapping 46 insect outbreaks 46 brightest comet 46 megaquakes 46 Eyjafjallajökull volcano 46 sedimentological 46 Himalayan Glaciers 46 permafrost melts 46 disappearing glaciers 46 Martian meteorite 46 turtle strandings 46 Eric Rignot 46 gigatonnes 46 aerosol particles 46 intraplate 46 damaging ultraviolet radiation 46 AB Aurigae 46 Katla volcano nearby 46 Cenozoic Era 46 Microlensing 46 manmade CO2 emissions 46 Ozone Depletion 46 Sheet WAIS 46 proton decay 46 SN #A 46 supervolcano 46 plankton bloom 46 cosmic microwave background 46 Oort cloud 46 #.#C #.#C 46 SAFOD 45 spacecraft flyby 45 Orcus Patera 45 Neutron stars 45 Apophis asteroid 45 albedo feedback 45 RS Oph 45 mountain lava dome 45 geological timescale 45 planktonic algae 45 nitrous oxide N2O 45 ppmv 45 Tunguska 45 Arctic Shelf 45 journal Geophysical Research 45 auroral displays 45 merging galaxies 45 Earth magnetosphere 45 wolverine habitat 45 anthropogenic CO2 emissions 45 supercontinent 45 Quadrantids 45 melt glaciers 45 sealevel 45 Envisat 45 Madden Julian Oscillation 45 Hawaiian Volcano Observatory 45 Atmospheric CO2 45 ESA Envisat satellite 45 aftershock sequence 45 ocean sediment cores 45 Chicxulub Crater 45 mass extinction 45 TGFs 45 subglacial lake 45 hematite mineral 45 thermohaline circulation 45 Chazy Reef 45 protoplanet 45 paleoenvironmental 45 radiative forcing 45 #P/Churyumov-Gerasimenko 45 mountain snowpacks 45 Solar Radiation 45 Eyjafjallajokull eruption 45 McMurdo Dry Valleys 45 Syrtis Major 45 thawing permafrost 45 Titan Saturn 45 volcanically active 45 magnetospheric 45 receding glaciers 45 martian meteorites 45 planet Uranus 45 meteorological phenomena 45 Cretaceous Paleogene 45 glacial earthquakes 45 moonquakes 45 #.#C #.#F [003] 45 blocks harmful ultraviolet 45 GLOF 45 Eyjafjoell volcano 45 #P/Holmes 45 fainter objects 45 greenhouse gases GHGs 45 neutrino oscillation 45 Solar flares 45 post perovskite 45 sun corona 45 meridional flow 45 exoplanetary systems 45 distant supernovae 45 Younger Dryas cold 45 extrasolar planet 45 outlet glaciers 45 superheavy elements 45 permafrost thaws 45 harmful ultraviolet radiation 45 melting icebergs 45 HABs 45 Noachian era 45 droughts heatwaves 45 gas hydrates 45 sunspot 45 hypoxic zones 45 Cascadia fault 45 Titan smoggy 45 phytoplankton populations 45 algal bloom 45 coronal loops 45 Martian crater 45 forams 45 substorms 45 interferogram 45 mineralogical composition 45 El Niños 45 oxygen isotope 45 galactic mergers 45 VY Canis Majoris 45 Nankai Trough Zone 45 infalling gas 45 dieoff 45 Infrared Pathfinder Satellite 45 Nili Fossae 45 smoggy atmosphere 45 Thirteen temblors 45 moon Io 45 Big Bang Machine 45 Marijuana potency 45 erosional 45 glaciers receded 45 biogeochemical processes 45 Powerful quakes 45 Cancri e 45 thinning ozone layer 45 wettest winters 45 submillimetre 45 meltwater 45 Corot 9b 45 Envisat ASAR 45 NEAs 45 supergiant star 45 volcanic eruptions 45 Hotter drier 45 geomagnetic field 45 Caloris Basin 45 dimming starlight 45 invisible odorless tasteless 45 mantle plumes 45 El Ninos 45 chlorofluorocarbons 45 Southern Oscillation 45 advection 45 starquakes 45 Whillans Ice Stream 45 GJ #b [002] 45 Asteroid Apophis 45 glaciological 45 infall 45 tectonic uplift 45 stratovolcano 45 proton collisions 45 Service WGMS 45 Atlantic Multidecadal Oscillation 45 longwave radiation 45 Von Frese 45 Paleoclimate 45 Orbiter MRO 45 damaging ultraviolet rays 45 Geological Survey Hawaiian Volcano 45 Holocene epoch 45 hydrate deposits 45 moon gravitational pull 45 phyllosilicate 45 IPCC AR4 45 Cenozoic 45 Extinctions 45 supercooled droplets 45 Type 1a supernova 45 Trifid Nebula 45 hottest driest 45 Gamma ray bursts 45 sulphate particles 45 severe droughts 45 Sr Ca 45 Cambrian Explosion 45 launcher subsystem 45 oxidized mercury 45 Anisotropy Probe WMAP 45 HiRISE image 45 Chile Chaiten volcano 45 Antennae Galaxies 45 exoplanets orbiting 45 upwelling 45 Global Precipitation Climatology 45 Cretaceous Tertiary KT 45 geomorphological 45 magma chamber 45 glaciers 45 Cumbre Vieja volcano 45 SELENE 45 polynya 45 megathrust quake 45 Mercury magnetosphere 45 undersea quakes 45 moon Enceladus 44 glaciers melt 44 ionospheric disturbances 44 galactic alignment 44 atmospheric moisture 44 Serreze 44 Volcanism 44 Mauna Loa Observatory 44 noctilucent cloud 44 volcanoes erupt 44 extinctions 44 Svante Arrhenius 44 Pierre Auger Observatory 44 #.#C [004] 44 metallicity 44 superstorms 44 Maunder Minimum 44 neutrino particles 44 methyl cyanide 44 telescopic observations 44 Antarctic Ice 44 equatorial latitudes 44 atmospheric ozone layer 44 supernovae 44 clathrates 44 El Nino Southern Oscillation 44 mid latitudes 44 Iceland Grimsvoetn volcano 44 cosmic ray 44 Nomura jellyfish 44 Antarctic Ice Shelf 44 anthropogenic climate 44 polar regions 44 extrasolar 44 moons Europa 44 Lyrids 44 Redoubt Volcano 44 noctilucent clouds 44 melting glacial 44 paleoclimatologists 44 chytrid 44 isotope fractionation 44 palaeoclimate 44 chlorofluorocarbon gases 44 tropical savanna 44 continental crust 44 Pu'u O'o crater 44 driest Junes 44 basaltic rock 44 Victoria Crater 44 thermal inertia 44 meteor impacts 44 cloud microphysics 44 planet HD #b 44 Earth thermosphere 44 Venus transits 44 accretion disk 44 volcanic aerosols 44 moulins 44 XMM Newton 44 anthropogenic CO2 44 Kilauea volcano 44 cinder cones 44 Petermann Glacier 44 particle acceleration 44 sulfidic 44 stratospheric clouds 44 Rune Graversen 44 Patagonian glaciers 44 reactive nitrogen 44 tiny single celled 44 methane CH4 44 thermonuclear reactions 44 lava fountains 44 chondrites 44 acidic oceans 44 asteroids orbiting 44 Comet Shoemaker Levy 44 tectonic activity 44 SINFONI 44 NASA THEMIS 44 Permian Triassic boundary 44 boreal ecosystems 44 Martian rovers 44 Mount Bosavi 44 Polar Vortex 44 coolings 44 methane hydrate 44 Late Devonian 44 manmade greenhouse gas 44 PSR J# +# 44 Seafloor 44 National Geodetic Survey 44 Surface Temperature 44 distant supernovas 44 laser altimeter 44 radial velocity 44 Permian Period 44 rover Spirit 44 hydrothermal fluid 44 olivine mineral 44 Nature Geoscience journal 44 HD#b 44 biodiversity hotspot 44 Cyanobacteria 44 Nature Geosciences 44 Greenland icecap 44 Earth Overshoot Day 44 Luterbacher 44 Mount Kilimanjaro glaciers 44 Walt Meier 44 NASA Cosmic Background 44 periodic oscillations 44 runaway thermonuclear 44 Deep Field HUDF 44 Appy Sluijs 44 Jakobshavn glacier 44 active galactic nucleus 44 Wilkinson Microwave Probe 44 exosphere 44 mid Pliocene 44 blazar 44 AATSR 44 Lake Cheko 44 methanogenesis 44 diffuse aurora 44 astrophysical 44 ragweed pollen 44 Permo Triassic 44 Moderate Resolution Imaging 44 Red Rectangle 44 Polar Regions 44 megafloods 44 megafaunal 44 geodynamics 44 carbon dioxide CO2 44 atmospheric convection 44 Georgi Mandushev 44 supernova explosions 44 Solar Terrestrial Physics 44 Milankovitch 44 multicellular creatures 44 El Nino periodic 44 antineutrino 44 tropical troposphere 44 amplifying feedbacks 44 Cryosat 44 2oC 44 km3 44 radial velocity method 44 microfossils 44 dangerously overheat 44 Le Quéré 44 Rignot 44 intrinsic brightness 44 Toutatis 44 fossilisation 44 PM#.# particles 44 earths surface 44 backscattering 44 SUSY 44 biospheric 44 RXTE 44 Tropical Rainfall Measuring 44 tropical glaciers 44 GOSAT 44 meridional overturning circulation 44 scarps indicating 44 Microcystis aeruginosa 44 planet orbiting 44 Upsilon Andromedae b 44 Cassini Huygens spacecraft 44 Mandushev 44 Remote sensing 44 troposphere 44 Algal blooms 44 Lake Yoa 44 Fornax cluster 44 lunar craters 44 type Ia supernova 44 lava extrusion 44 orbiting observatory 44 Methyl mercury 44 Martian permafrost 44 Tunguska object 44 Antarctic krill 44 coastal inundation 44 convective storms 44 Atom smasher 44 cosmic rays 44 lava oozed 44 Comet Halley 44 Global warming 44 X ray binaries 44 Climatic Optimum 44 blackbody 44 galaxy NGC 44 sheet Summerhayes 44 stellar seismology 44 unlogged forests 44 smoothed sunspot number 44 megacryometeor 44 El Chichon 44 cluster NGC 44 Chilean Atacama Desert 44 perihelion 44 magma ocean 44 cow enteric 44 filamentary structure 44 manto mineralization 44 Mission TRMM satellite 44 ARkStorm 44 Ozone Monitoring 44 Little Ice Age 44 megathrust 44 Saturnian moon 44 Hubble Ultra 44 phytoplankton biomass 44 Iceland Eyjafjoell volcano 44 starburst galaxy 44 oxygenic photosynthesis 44 subduction earthquake 44 galactic nucleus 43 climate forcings 43 geodynamic 43 Natalie Mahowald 43 geological timescales 43 seawater pH 43 Eyjafjallajokul erupted 43 Memouniat Formation 43 gamma ray bursts 43 protons collide 43 geomagnetic storms 43 Domoic acid neurotoxin 43 luminous galaxies 43 cosmic ray particles 43 El Niño La Niña 43 Wilkinson Microwave Anisotropy Probe 43 primitive meteorites 43 Martian rocks 43 eco toxicological 43 thermal gradients 43 gamma ray flashes 43 Year IPY 43 Comet Hale Bopp 43 CoRoT satellite 43 intersex fish 43 subpolar gyre