Related by context. Frequent words. (Click for all words.) 62 Rignot 61 Rahmstorf 61 atmospheric CO2 61 atmospheric CO 60 atmospheric CO2 concentrations 58 ocean acidity 57 CO2 concentrations 57 carbon dioxide concentrations 55 atmospheric concentrations 55 atmospheric methane 55 Raupach 54 Serreze 54 Eric Rignot 54 deglaciation 54 Guldberg 53 Amstrup 53 hydrological cycle 53 Zachos 52 hydrologic cycle 52 mid latitudes 52 Smol 52 glacial melting 52 aerosol particles 52 upper troposphere 52 ozone layer depletion 51 Tinetti 51 Meehl 51 greenhouse warming 51 Idso 51 poleward 51 Ezzati 51 Bibbins Domingo 51 polar vortex 51 Tarduno 51 phytoplankton blooms 50 forcings 50 reactive nitrogen 50 Willerslev 50 terrestrial ecosystems 50 species extinctions 50 tropopause 50 glacial retreat 50 greenhouse gas concentrations 50 Ocean acidification 50 Zoback 50 Beth Abramson 50 plankton blooms 50 chytrid 49 Varki 49 atmospheric carbon dioxide 49 Antarctic glaciers 49 Braathen 49 Nielsen Gammon 49 tropospheric 49 nitrogen deposition 49 atmospheric circulation 49 Scambos 49 atmospheric ozone 49 radiative forcing 49 Pielke 49 Jonathan Overpeck 49 temperature gradients 49 glacial melt 49 El Nino warming 49 stratospheric ozone 49 O'Dor 49 acidification 48 Biogeography 48 Dessler 48 isotope ratios 48 SSTs 48 Sinervo 48 Robock 48 El Ninos 48 ozone depletion 48 Alpine glaciers 48 Crutzen 48 Trenberth 48 Landsea 48 ocean acidification 47 Nature Geoscience 47 gigatonnes 47 glacier melt 47 NCAR scientist 47 climate modelers 47 acidify 47 lithosphere 47 Finnish Meteorological 47 Ice Ages 47 oxygen isotope 47 icecaps 47 #.#C [004] 47 Xiang Zhang 47 subglacial 47 Poinar 47 groundwater depletion 47 Plimer 47 Michel Jarraud 46 fluxes 46 abundances 46 wetter winters