Related by context. All words. (Click for frequent words.) 74 atmospheric CO2 72 carbon dioxide concentrations 71 CO2 concentrations 70 atmospheric CO 69 atmospheric CO2 concentrations 69 atmospheric carbon dioxide 68 atmospheric CO2 levels 68 ppmv 65 anthropogenic greenhouse gas 64 greenhouse gas concentrations 64 GHG concentrations 64 #.#oC [001] 64 atmospheric methane 64 anthropogenic emissions 63 anthropogenic CO2 emissions 62 ppm CO2 62 atmospheric concentrations 62 surface temperatures SSTs 62 ocean acidity 62 Le Quéré 61 ° C warmer 61 2oC 61 radiative forcing 61 Palaeocene Eocene Thermal Maximum 61 phytoplankton biomass 61 ppbv 61 deglaciation 60 anthropogenic carbon dioxide 60 climatic variability 60 anthropogenic CO2 60 Atmospheric CO2 60 cosmic ray flux 59 aerosol concentrations 59 interglacial periods 59 GtC 59 glacial interglacial 58 poleward 58 sulphate aerosols 58 interglacial period 58 glacial interglacial cycles 58 atmospheric CO2 enrichment 58 coccolithophores 58 nitrogen deposition 58 anthropogenic greenhouse gases 58 mammal extinctions 58 Wm -2 58 chlorophyll concentrations 58 hydrological cycle 57 solar irradiance 57 forcings 57 Kharecha 57 Elevated CO2 57 preindustrial times 57 manmade CO2 emissions 57 marine phytoplankton 57 greenhouse warming 57 species extinctions 57 glacier shrinkage 57 sunspot activity 57 cosmic ray intensity 57 climate modellers 56 hydrologic cycle 56 anthropogenic warming 56 warmings 56 phytoplankton populations 56 W/m2 56 tropospheric ozone 56 oxidized mercury 56 gigatonnes 56 anthropogenic 56 SSTs 56 thermal inertia 56 Last Glacial Maximum 56 midlatitudes 56 #.#C #.#F [003] 56 mid Pliocene 56 #.#C [004] 56 #.#C #.#C 56 interglacial 56 #.#C above 55 planetary warming 55 #.#C warmer 55 interglacials 55 phosphorus concentrations 55 Rignot 55 paleoclimatic 55 N2O emissions 55 terrestrial ecosystems 55 anthropogenic CO 55 interannual variability 55 2ppm 55 sulfate aerosols 55 extinctions 55 Paleocene Eocene Thermal Maximum 55 seawater pH 55 tropospheric temperature 55 axial tilt 55 deep convective clouds 55 Appy Sluijs 55 tropospheric 54 Ice Ages 54 decadal 54 Medieval Warm Period 54 interannual 54 C4 grasses 54 tropical troposphere 54 Medieval Warm Period MWP 54 warm interglacial 54 tectonic plate movements 54 Eemian 54 terrestrial biosphere 54 yr -1 54 springtime ozone 54 oceanic circulation 54 gaseous pollutants 54 Little Ice Age 54 #.#C [002] 54 atmospheric aerosols 54 atmospheric ozone 54 tropopause 54 salinities 54 Rossby waves 54 anthropogenically 54 kyr 54 tropical latitudes 53 Earth biosphere 53 glaciations 53 Rahmstorf 53 sealevel 53 Zeebe 53 Permian extinction 53 glacial melting 53 albedo 53 PBDE concentrations 53 reactive nitrogen 53 isotope fractionation 53 Alternative splicing 53 Jevrejeva 53 CO ² emissions 53 exajoules 53 isoprene 53 chloride concentrations 53 serum homocysteine 53 mid latitudes 53 #ppm [001] 53 benthic foraminifera 53 mantle convection 53 aerosol particles 53 longwave radiation 53 phytoplankton blooms 53 2C #.#F 53 carbonate ion 53 Keeling Curve 53 SO2 emission 53 geological timescales 53 Neoproterozoic 53 #.#-#.# degrees Fahrenheit [002] 53 oC 53 Antarctic stratosphere 53 CaCO 3 53 degrees Fahrenheit warmer 53 upper troposphere 53 marine sediments 52 permafrost degradation 52 teleconnections 52 Miocene epoch 52 downwelling 52 alpine glaciers 52 CO ² 52 boreal regions 52 Toba eruption 52 glacier retreat 52 Oligocene epoch 52 thermohaline circulation 52 mesosphere 52 temperature gradients 52 glaciation 52 Medieval Warming Period 52 hydroxyl radical 52 Corinne Le Quere 52 sunspot cycles 52 mountain snowpacks 52 gigatonne 52 volcanic aerosols 52 CHD mortality 52 degrees Celsius #.#F [001] 52 Permian Triassic 52 ozone concentrations 52 nitrogen fertilization 52 preindustrial 52 CO2 52 sunspot numbers 52 Ulysses spacecraft 52 Ozone depletion 52 Great Oxidation Event 52 Younger Dryas 52 carbon dioxide CO ² 52 glacial melt 52 coolings 52 CO2 eq 52 Earth Overshoot Day 52 thermal equilibrium 52 nitrous oxide N2O 52 Coulomb blockade 52 megadrought 52 Late Paleozoic 52 satellite altimetry 52 terawatts 52 arsenic concentrations 52 stratospheric ozone depletion 51 km3 51 Holocene 51 Permian Triassic boundary 51 abundances 51 basaltic rocks 51 SO2 emissions 51 manmade greenhouse gases 51 neutrino mass 51 warmer wetter winters 51 climate modelers 51 solar minima 51 atmospheric circulation 51 Cryogenian 51 thermal gradients 51 Ultraviolet radiation 51 mantle plumes 51 megadroughts 51 BLLs 51 Southern Oscillation 51 biocapacity 51 amplifying feedbacks 51 δ 51 SST anomalies 51 coral calcification 51 Greenland icesheet 51 tectonic uplift 51 insolation 51 Amundsen Sea 51 orbital eccentricity 51 climatic variations 51 climate alarmists 51 methane CH4 51 anomalously warm 51 sun irradiance 51 mass extinctions 51 CO -2 emissions 51 gamma ray emission 51 osmotic stress 51 acidification 51 photosynthetic apparatus 51 isotherms 51 mountain glaciers 51 geomagnetic activity 51 Snowball Earth 51 nitrification 51 teragrams 51 mass extinction 51 periodicities 51 Greenhouse gasses 51 glacial retreat 51 Cambrian Period 51 aridity 51 ghg emissions 51 glacial earthquakes 51 Pliocene 51 degree Centigrade 50 pHs 50 Velicogna 50 KT boundary 50 lipoprotein cholesterol 50 sunspot cycle 50 Phanerozoic 50 nonfasting triglycerides 50 carbon fluxes 50 La Nià ± 50 sulfate aerosol 50 biogeochemical 50 logarithmically 50 glaciers receded 50 hydrosphere 50 Behrenfeld 50 galactic disk 50 urinary excretion 50 nitrogen fixation 50 1ppm 50 Climatic Optimum 50 multi decadal 50 oxygen isotopic composition 50 atmospheric moisture 50 elevated atmospheric CO2 50 meteorite bombardment 50 sediments deposited 50 nitrous oxide emissions 50 ozone O3 50 oligotrophic 50 humans Homo sapiens 50 Orjan Gustafsson 50 Laki eruption 50 subglacial 50 El Niños 50 glacial meltwater 50 Eta Aquarid meteor shower 50 glacial cycles 50 polar latitudes 50 GeV 50 advection 50 stomatal conductance 50 Carbon dioxide concentrations 50 exceedences 50 nitrate concentrations 50 Anthony Barnosky 50 metallicity 50 Madden Julian Oscillation 50 lowermost mantle 50 substorm 50 potent greenhouse gas 50 irradiance 50 Atlantic thermohaline circulation 50 Eric Rignot 50 mid tropospheric 50 Sr Ca 50 dustier stormier atmosphere 50 albumin excretion 50 Late Ordovician 50 Cenozoic 50 Noctilucent clouds 50 photosynthetic 50 anthropogenic aerosols 50 Trichodesmium 50 angiosperm 50 anthropogenic climate 50 volcanism 50 oVOCs 50 thermal gradient 50 Cambrian explosion 50 Quaternary Period 50 geological epoch 50 phytoplankton bloom 50 diatom 50 Aiguo Dai 50 ozone depletion 50 Earth albedo 50 coastal upwelling 50 Species extinction 49 palaeoclimate 49 SN Ia 49 polar icecap 49 upper tropospheric 49 harmful ultraviolet UV radiation 49 animal phyla 49 Anthropocene 49 icesheets 49 stratospheric ozone 49 Relative humidity 49 ° C 49 Gigatonnes 49 Atlantic Multidecadal Oscillation AMO 49 oxyhemoglobin 49 southern latitudes 49 outlet glaciers 49 phytoplankton 49 Le Quere 49 chlorine monoxide 49 supersaturation 49 temperate latitudes 49 amphibian declines 49 pika habitat 49 carbon dioxide 49 Jakobshavn Isbrae 49 sequestering CO2 49 Indian Ocean Dipole 49 biogeochemical cycles 49 oxygenic photosynthesis 49 temperate zones 49 CO2 CH4 49 serum calcium 49 droughts floods storms 49 Interglacial 49 solar nebula 49 pollutant concentrations 49 Jakobshavn 49 climate forcings 49 equatorial Pacific Ocean 49 Svante Arrhenius 49 asthenosphere 49 pCi l 49 Eocene epoch 49 #ppb [001] 49 troposphere 49 Milankovitch cycles 49 B meson 49 Carbon dioxide CO2 49 glaciers melt 49 icecap 49 ocean ridges 49 biospheric 49 rhizosphere 49 bacterial decomposition 49 ˚ C 49 Noah Diffenbaugh 49 Carbon dioxide emissions 49 glaciological 49 decadal scale 49 Younger Dryas cold 49 gravitational acceleration 49 m z 49 Late Devonian 49 deplete ozone 49 biosphere 49 subtropical regions 49 assimilative capacity 49 tiny single celled 49 mT 49 Antarctic ozone 49 #TWh [001] 49 acidic oceans 49 subcellular compartments 49 evapotranspiration 49 Ordovician extinction 49 Paleocene Eocene thermal 49 C# atmospheric concentrations 49 isotherm 49 sunlike stars 49 microbial ecosystems 49 inorganic mercury 49 ozone layer depletion 49 CO2 fluxes 49 forams 49 isostatic rebound 49 methyl chloroform 49 Antarctic glaciers 49 paleomagnetic 49 Phytoplankton 49 RBP4 49 keV 49 methanogenesis 49 ° latitude 49 corticosterone levels 49 Nitrogen oxide emissions 49 continental crust 49 Neogene 49 severe droughts 49 sheet Summerhayes 49 kelvin 49 peroxynitrite 49 Tibetan Plateau 49 electronvolts 49 oceanic currents 49 seafloor sediments 49 dietary nitrate 49 polar mesospheric clouds 49 8 OHdG 49 nematode Caenorhabditis elegans 48 isotopic variations 48 CaCO3 48 carbondioxide 48 #.#degC [001] 48 solar neutrinos 48 Kilimanjaro glaciers 48 particulate matter emitted 48 Arctic icecap 48 monotonically 48 icecaps 48 crustal thickness 48 biogeographic 48 nitrogen oxides emitted 48 ppm 48 Coral bleaching 48 nitrogen excretion 48 mercury concentrations 48 Fine particulate 48 diurnal temperature 48 upwellings 48 salinity 48 Ediacaran 48 Noachian 48 antineutrinos 48 autotrophic 48 ultra violet radiation 48 El Nino warming 48 ozone depleting gases 48 polar vortex 48 ocean basins 48 latitudes 48 Celsius #.#F 48 glaciers retreated 48 Mtoe 48 Greenland Ice 48 gigatons 48 magma ocean 48 CO2emissions 48 single celled microbes 48 wetter winters 48 degree centigrade 48 mK 48 degrees Celsius above preindustrial 48 Fram Strait 48 Friis Christensen 48 poleward shift 48 superheavy elements 48 SOx emissions 48 spatial scales 48 μg dL 48 #mn b d 48 ENSO cycle 48 reaction kinetics 48 Biogeochemistry 48 neutrino oscillation 48 Earth axial tilt 48 aboveground biomass 48 expiratory flow 48 quantum oscillations 48 glaciers melted 48 proton conductivity 48 temperature reconstructions 48 manmade greenhouse gas 48 Halifax Weather Overcast 48 nitrous oxide emission 48 enthalpy 48 Sumatra Andaman earthquake 48 explosive volcanism 48 trophic levels 48 Palaeocene Eocene thermal 48 Supplementary Table 48 photochemical reactions 48 humidex values 48 drylands 48 atmospheric pollutants 48 total solar irradiance 48 temperate regions 48 z = 48 aphid populations 48 multifactor productivity 48 nitrogen oxide NOx emissions 48 sulfur dioxide SO2 emissions 48 halogenated gases 48 Carbon dioxide CO2 emissions 48 humid tropics 48 Ocean acidification 48 BAU scenario 48 Fig. 4A 48 kT 48 fluxes 48 Reference Scenario 48 Seismicity 48 greenhouse gases GHG 48 glacier melt 48 redox sensitive 48 Sulphur dioxide 48 paleoenvironmental 48 anerobic 48 photosynthetic organisms 48 Alaskan glaciers 48 runaway greenhouse 48 GPa 48 magnetic substorms 48 radiocarbon 48 º C 48 plankton blooms 48 paleoclimate 48 Yellowstone caldera 48 annealing temperature 48 Jay Zwally 48 biogenic 48 planktonic algae 48 proton decay 48 Eutrophication 48 geoid 48 ocean eddies 48 subtropics 48 diurnal variation 48 Katharine Willett 48 denitrification 48 glacier melts 48 atmospheric circulations 48 hotter drier summers 48 cortisol secretion 48 metabolite concentrations 48 degrees above preindustrial 47 nuclides 47 #ppm CO2 47 WASP #b 47 thermosphere 47 serum HBV DNA 47 #.#F [001] 47 solvation 47 #ppb [003] 47 magmatism 47 vertical wind shear 47 #ppb Au [002] 47 ecoregions 47 mcg dL 47 Corinne Le Quéré 47 FTE staffing 47 acidifying oceans 47 urinary cadmium 47 IPCC AR4 47 Medieval Warming 47 perturbation 47 geosynchronous orbit reached 47 auroral activity 47 streamflow 47 Laurentide ice sheet 47 solar insolation 47 icesheet 47 º Fahrenheit 47 preindustrial levels 47 hypercapnia 47 serum LDL cholesterol 47 nmol liter 47 τ 47 urinary BPA 47 temperate forests 47 maxima 47 Paleozoic Era 47 benthos 47 diatoms 47 warm interglacial periods 47 sulfur dioxide emission 47 triplet births 47 global warming gasses 47 relative humidities 47 cm -3 47 CVD mortality 47 lunar perigee 47 floods heatwaves droughts 47 luminous galaxies 47 Dr van Ommen 47 Pierre Friedlingstein 47 Nitrogen dioxide 47 electron density 47 #ppm [002] 47 terrestrial vertebrates 47 nitrogen trifluoride 47 endophytic 47 angiosperms 47 serum urate 47 crustal rocks 47 nitrogen oxides NOx emissions 47 Alpine glaciers 47 PAH concentrations 47 cm -1 47 radiative 47 landfalling hurricanes 47 carbon dioxide CO2 47 degrees Fahrenheit 47 Paleoclimate 47 pH 47 dietary sodium 47 parasitaemia 47 biogeochemical processes 47 KCNH2 47 oxygen isotope ratios 47 subsurface ocean 47 airborne pollutant 47 greenhouse gases 47 magmas 47 Fig. 2A 47 Stratospheric ozone 47 geosphere 47 Antarctic icecap 47 degrees Centigrade 47 GHGs 47 #.degree [002] 47 midge populations 47 reionization 47 Rayleigh scattering 47 carbonate minerals 47 herbivory 47 nanomolar 47 dynamical evolution 47 velocity dispersion 47 author Gregg Marland 47 spatial variability 47 Crutzen 47 pmol L 47 earths 47 airglow 47 Min Temp #.# 47 meteoritic material 47 Hotter drier weather 47 photic zone 47 Roland Holst 47 Amazonian forests 47 X ray pulses 47 dynamical processes 47 microbially 47 microvolts 47 observable phenomena 47 ρ 47 serum vitamin D 47 atmospheric nitrogen 47 cyanobacterial 47 multidecadal 47 electron scattering 47 nT 47 kg/m3 47 sulfate 47 Gangotri glacier 47 seismicity 47 TrES 4 47 blackbody 47 invisible odorless tasteless 47 -# degrees Fahrenheit [002] 47 oxygen isotope 47 UVB exposure 47 iodine intake 47 Schladow 47 μg L 47 cirrus cloud 47 sulfur isotope 47 methane oxidation 47 serum lipid levels 47 electrical resistivity 47 greenhouse gasses 47 Telomere shortening 47 prenatal phthalate exposure 47 sulphate particles 47 carbon isotope ratios 47 La Nina occurs 47 GJ#b 47 anti dsDNA antibodies 47 degree celcius 47 magnon 47 Sulfur dioxide emissions 47 climatological 47 centistokes 47 carbondioxide emissions 47 Paleogene 46 osmotic pressure 46 thermometer readings 46 iridium layer 46 W/cm2 46 tectonic stresses 46 crop yields 46 atmospheric 46 PER2 46 electronic excitations 46 Svensmark 46 cloud condensation nuclei 46 recrystallization 46 Boreal forests 46 storminess 46 Amundsen Sea Embayment 46 Co2 emissions 46 nucleotide substitutions 46 asparagine 46 CarbonTracker 46 2 MeV electron 46 isotope composition 46 adsorbate 46 Anthropogenic 46 stochasticity 46 Fig. 1A 46 Snowpacks 46 waterbird populations 46 Polar Regions 46 Elevated concentrations 46 subglacial lakes 46 methanogens 46 climatic phenomena 46 permafrost thaw 46 boreal ecosystems 46 ferroelectricity 46 temperatures 46 serum creatinine levels 46 volcanic plumes 46 radiative cooling 46 di GMP 46 sedimentary deposits 46 greenhouse gases GHGs 46 photolysis 46 diatom species 46 Himalayan glaciers melting 46 distant supernovae 46 Siberian Traps 46 northerly latitudes 46 permafrost melts 46 photosynthesis 46 Fig. 3B 46 inorganic nitrogen 46 Replikin Count 46 altitudinal 46 geothermal gradient 46 desorption 46 familial AF 46 cometary material 46 temporal variability 46 groundwater depletion 46 fine particulate pollution 46 Cloudiness 46 Warmer seas 46 mmol 46 Schmittner 46 lithosphere 46 plasma fibrinogen 46 kilopascals 46 Brenda Ekwurzel climate 46 tropical savanna 46 Greenland ice 46 fluorescence intensity 46 Greenhouse gases 46 Pleistocene Ice Age 46 GZK cutoff 46 urinary oxalate 46 anticyclones 46 taxa 46 hurricane landfalls 46 ug L 46 Gaetano Di Achille 46 nitrotyrosine 46 cyanobacteria 46 minima 46 atmospheric deposition 46 locust upsurge 46 eruptive activity 46 coronal loop 46 nitrous oxides NOx 46 electron neutrinos 46 isotope ratios 46 organometallic compounds 46 upwelling 46 Mt CO2e 46 lake sediments 46 galactic cosmic rays 46 Maunder minimum 46 natriuretic peptides 46 Ordovician 46 semiarid regions 46 megafauna extinction 46 CH4 46 sorption 46 flood basalts 46 protonated 46 Venusian atmosphere 46 Doppler shifts 46 acrylamide formation 46 primitive organisms 46 greenhouse gas nitrous oxide 46 cyanobacterial blooms 46 #OHD 46 fissure eruption 46 Greenland glaciers 46 Romero Lankao 46 glycolytic 46 serum sodium concentration 46 faunas 46 overburden thickness 46 El Niño Southern Oscillation 46 colder drier 46 shear modulus 46 LDL cholesterol concentrations 46 barometric pressures 46 heatwaves 46 Brigham Grette 46 glaciers 46 serum uric acid 46 supersolid 46 º Celsius 46 cratons 46 equilibration 46 Domoic acid neurotoxin 46 g/m3 46 differential gene expression 46 Otto Bliesner 46 isotopic composition 46 hydroxyl radicals 46 silicate rocks 46 type Ia supernovae 46 serum sodium 46 Marijuana potency 46 dwelling organisms 46 metazoans 46 Pleistocene Epoch 46 X ray emission 46 phonon 46 Weiqing Han 46 hydrothermal activity 46 SNe Ia 46 # º [001] 46 gravitational redshift 46 ozone depleting compounds 46 atmospheric oceanic 46 magnetic polarity 46 temperate grasslands 46 RfD 46 Ontario Lacus 46 waterbird species 46 coronal hole 46 Harmful algal blooms 46 Nernst 46 smoothed sunspot number 46 micromolar 46 radioactive decay 46 ppb Ag 46 chlorine peroxide 46 ocean upwelling 46 MJO wave 46 #lm [002] 46 heterotrophic 46 supercooling 46 Millennium Ecosystem Assessment 46 HABs 46 Nature Geoscience journal 46 fluid shear 46 ° Fahrenheit 46 phenanthrene 46 dinosaur genera 46 N2O 46 martensite 46 kcal mol 46 chromosphere 46 planet Earths 46 VY Canis Majoris 46 dangerous anthropogenic interference 46 Joan Kleypas 46 perihelion 46 post perovskite 46 Hotter temperatures 46 Å -1 46 asymptotic 46 Mg Ca 46 Arsenic occurs 46 author Ken Caldeira 46 sulfuryl fluoride 46 explosive eruptions 46 Saturn auroras 46 molten magma 46 carbonyl sulfide 46 Glacial melt 46 Thomas Malthus 46 speciation 46 Hadean Eon 46 NOX emissions 46 photosynthesise 46 isotopic 46 bicarbonate ions 46 Min temp 46 Genome sequencing 46 filamentary structure 46 hypoxic zone 46 disappearing glaciers 46 photocatalysis 46 PANHANDLE Temperatures 46 Pacific hake whitefish 46 alkalinity 46 isotopic compositions 45 radon concentrations 45 dewpoints 45 sulfuric dioxide 45 C4 photosynthesis 45 triacylglycerol 45 carbon cenospheres 45 η 45 terawatt hours twh representing 45 Earth rotational axis 45 stoichiometry 45 Shakhova 45 Myr 45 μmol 45 endemism 45 Industrial Revolution 45 quadrillion Btu 45 respirable particles 45 asteroid impacts 45 temperature 45 interfacial tension 45 Eocene 45 Roman Warm Period 45 nitrogen oxides carbon monoxide 45 unicellular organisms 45 acidifying 45 palmitoleate 45 seabed sediments 45 spermidine 45 Planetary Change 45 selenoproteins 45 paleoclimatologists 45 ammonia NH3 45 economically extractable 45 luminous efficacy 45 Gabriel Vecchi 45 Himalaya glaciers 45 bottomhole pressure 45 Bq/m3 45 Cold Dark Matter 45 stratospheric ozone chemistry 45 auroral 45 #.#C #.#F [004] 45 SeaWiFS 45 elastic moduli 45 quasiparticle 45 fig. S1 45 anammox 45 multi celled 45 Haber Bosch 45 Gregory Asner 45 phreatic 45 micro sieverts