Related by context. Frequent words. (Click for all words.) 55 Rignot 52 worsening droughts 52 icecaps 51 reactive nitrogen 51 polar caps 50 Biogeography 50 upper troposphere 50 NCAR scientist 50 biogeochemist 49 Ocean acidification 49 Robock 49 ocean acidity 49 hydrological cycle 49 upwellings 48 hydrologic cycle 48 El Ninos 48 journal Climatic Change 48 Roger Pielke Jr. 48 Methylmercury 48 acidify 48 Nature Geoscience 48 potent greenhouse gas 48 atmospheric circulation 48 melting polar 47 lithosphere 47 Eric Rignot 47 atmospheric methane 47 glaciers melting 47 glaciers melt 47 Trenberth 47 Guldberg 47 atmospheric ozone 47 plankton blooms 47 gyres 47 ozone layer depletion 47 mid latitudes 47 subglacial 47 forcings 46 warmings 46 Melting glaciers 46 journal Geophysical Research 46 phytoplankton blooms 46 Climatic Change 46 atmospheric chemistry 46 tropopause 46 Ultraviolet radiation 45 terrestrial ecosystems 45 naturally occuring 45 Elizabeth Kolbert 45 El Niños 45 species extinctions 45 Anthropogenic 45 atmospheric CO2 concentration 45 Mark Serreze 45 mountain glaciers 45 anthropogenic climate 45 melting glaciers 45 Richard Lindzen 45 Rahmstorf 45 Global warming 45 La Nina cooling 45 interstellar clouds 45 Robert Corell 45 meteor impacts 45 greenhouse warming 45 ocean ridges 45 Nielsen Gammon 45 Jonathan Overpeck 45 hotter summers 45 glacial melt 45 Ice Ages 45 undersea volcanoes 45 amphipods 45 Kevin Trenberth 45 ocean acidification 45 gigatonnes 45 oxygen isotope 45 clathrates 45 Serreze 45 Arctic permafrost 45 endocrine disruption 44 atmospheric CO2 44 Pielke 44 Geophysical Research 44 deglaciation 44 La Ninas 44 temperate zones 44 Alpine glaciers 44 planktonic 44 paleoclimatologist 44 Warming temperatures 44 Ben Santer 44 El Nino Southern Oscillation 44 journal Icarus 44 gut microbiota 44 wetter winters 44 earthquakes volcanic eruptions 44 Carl Pilcher 44 Extinctions 44 mesosphere 44 Antarctic glaciers