Related by context. Frequent words. (Click for all words.) 69 aerosol particles 62 radiative forcing 60 atmospheric methane 60 atmospheric CO 60 solar irradiance 59 cirrus clouds 58 mid latitudes 58 aerosols 57 water vapor 57 albedo 56 ozone concentrations 56 CO2 concentrations 56 insolation 56 greenhouse warming 56 biogeochemical 55 troposphere 55 abundances 55 ozone depletion 55 atmospheric circulation 55 atmospheric 55 poleward 54 glacial melting 54 irradiance 54 glacial melt 54 subtropical regions 54 atmospheric chemistry 54 Sulfur dioxide 54 glacial retreat 54 equatorial regions 54 airborne pollutants 54 temperature gradient 54 oxygen isotopes 53 Tibetan Plateau 53 isotopic composition 53 ionisation 53 atmospheric CO2 53 hydrological cycle 53 marine sediments 53 climate modelers 53 Relative humidity 53 ocean acidity 53 fine particulates 53 sulphates 53 temperate forests 53 isoprene 53 temperature inversion 52 sulfur dioxide SO2 52 gigatonnes 52 sunspot activity 52 volcanic plume 52 soot particles 52 journal Geophysical Research 52 stratospheric ozone 52 ultrafine particles 52 polar regions 52 fine particulate 52 atmospheric carbon dioxide 52 reflectance 52 El Nino warming 51 electron density 51 terrestrial ecosystems 51 osmium 51 greenhouse gas concentrations 51 Greenhouse gases 51 solar corona 51 Polar Regions 51 cryosphere 51 equatorial Pacific Ocean 51 nitrous oxides 51 atmospheric concentrations 51 Cosmic rays 51 auroral 51 temperate regions 51 eastern equatorial Pacific 50 basaltic 50 pollutants emitted 50 glacier melt 50 nitrous oxide emissions 50 volcanism 50 particulate matter 50 decadal 50 particulates 50 scarps 50 anthropogenic 50 CO ² 50 latitudes 50 polar caps 50 volcanic gases 50 iron oxides 50 fluxes 50 SO2 emissions 50 lithosphere 50 sulfur dioxide nitrogen oxides 50 Computer simulations 50 gases emitted 50 Antarctic ozone 50 greenhouse gases GHGs 49 X ray emission 49 cirrus 49 evapotranspiration 49 #.#C [004]