Related by context. Frequent words. (Click for all words.) 56 Rignot 55 Robock 55 NCAR scientist 54 atmospheric chemistry 54 Ken Caldeira 53 aerosol particles 53 biogeochemical 52 Amstrup 52 hydrologic cycle 52 Ecofys 52 biogeochemistry 51 upper troposphere 51 Crutzen 51 glacial melting 51 ocean acidity 51 hydrological cycle 51 nitrogen trifluoride 50 atmospheric methane 50 isoprene 50 atmospheric circulation 49 Michel Jarraud 49 terrestrial ecosystems 49 journal Geophysical Research 49 greenhouse warming 49 University Lamont Doherty 49 Mitloehner 49 Atmospheric Chemistry 49 Nature Geoscience 48 deglaciation 48 Braathen 48 Nitrogen oxides 48 photochemistry 48 Finnish Meteorological 48 acidify 48 water vapor 48 Helmholtz Centre 48 Xiang Zhang 48 atmospheric chemist 47 Lunine 47 radiative forcing 47 biogenic 47 anthropogenic 47 potent greenhouse gas 47 atmospheric CO2 47 Burning fossil fuels 46 oceanic sciences 46 Mark Serreze 46 atmospheric physicist 46 clathrates 46 Cefic 46 Norwegian Polar 46 Klaus Toepfer 46 absorbs carbon dioxide 46 atmospheric 46 tropospheric 46 aerosols 46 Geophysical Research 46 Smol 46 Computer simulations 46 Melosh 46 ozone depletion 46 Biogeography 46 stratospheric ozone 46 ocean acidification 46 Jonathan Overpeck 46 Paul Crutzen 45 CO2 sequestration 45 Development IIED 45 numerical simulations 45 atmospheric CO 45 Trenberth 45 troposphere 45 Serreze 45 journal Nature Geoscience 45 glacial retreat 45 pollutants 45 Udry 45 tropopause 45 acidifying 45 bioaccumulation 45 atmospheric CO2 concentrations 45 mesoscale 45 Pacific Decadal Oscillation 45 Landsea 45 atmospheric concentrations 45 Zoback 45 Willerslev 45 Climate Impact Assessment 44 commissioner Stavros Dimas 44 Hoerling 44 atmospheric carbon dioxide 44 fluorocarbons 44 Environment Programme 44 atmospheric scientist 44 atmospheric ozone 44 phytoplankton blooms 44 Worldwatch 44 numerical modeling 44 Janice Nolen 44 CO2 concentrations 44 sorption