Related by context. Frequent words. (Click for all words.) 61 radiative forcing 60 hydrologic cycle 59 solar irradiance 56 atmospheric chemistry 56 aerosol particles 56 tropospheric 55 meteorite impacts 55 biogeochemical 55 fluxes 55 abiotic 54 atmospheric methane 54 geoid 54 biogenic 54 hydrological cycle 53 radiative 53 anthropogenic 53 elemental composition 53 isotopic composition 53 radioactive decay 52 solar nebula 52 isotopic 52 perturbations 52 atmospheric CO 52 greenhouse warming 52 sorption 52 chirality 52 ozone depletion 52 atmospheric 51 spatial scales 51 astrophysical 51 dynamical 51 oxygen isotopes 51 isotope ratios 51 Computer simulations 51 ionisation 51 aerosols 50 cryosphere 50 biophysical 50 irradiance 50 terrestrial ecosystems 50 insolation 50 stratospheric ozone 50 Einstein theories 50 thermodynamic 50 anthropogenic climate 50 isoprene 50 paleoclimate 50 substorm 50 atmospheric carbon dioxide 50 gaseous emissions 49 atmospheric CO2 49 biochemical processes 49 biogeochemistry 49 abundances 49 glaciations 49 solar corona 49 clathrates 49 ENSO 49 albedo 49 ionospheric 49 Solar flares 49 morphologies 49 atmospheric circulation 49 sunspot cycle 49 deglaciation 49 noble gases 49 chemical reactions 49 exosphere 49 degassing 48 ultraviolet wavelengths 48 ocean salinity 48 parameterization 48 CO2 sequestration 48 phytoplankton blooms 48 oscillations 48 phenomena 48 galaxy formation 48 microwave radiation 48 variability 48 numerical simulations 48 adiabatic 48 nonlinearity 48 crustal 48 chemical composition 48 circadian clocks 48 footprinting 47 electron density 47 physicochemical 47 atmospheric CO2 concentrations 47 Younger Dryas 47 atmospheric concentrations 47 remotely sensed 47 evapotranspiration 47 planetary 47 Greenhouse Effect 47 prokaryotes 47 plate tectonics 47 astronomical observations 47 mesoscale 47 airflows 47 noctilucent clouds