Related by context. Frequent words. (Click for all words.) 50 gigatons 45 atmospheric CO2 43 CO2 emissions 42 megatonnes 41 CO2 41 #.#C [002] 40 TWh 38 Greenhouse Gases 38 atmospheric carbon dioxide 38 GHGs 38 Cf 37 Carbon dioxide emissions 37 º C 37 suppl 37 C# emissions 37 carbon dioxide emissions 37 nitrous oxide emissions 37 albedo 36 degree centigrade 36 ° C 36 extinctions 36 greenhouse warming 36 degrees Centigrade 35 carbon emissions 35 #ppm [001] 35 degrees centigrade 35 GHG emissions 35 greenhouse emissions 35 carbon emitted 35 CO 35 Suppl 35 greenhouse gas concentrations 34 anthropogenic 34 Emissions 34 GHG 34 carbon sinks 34 KWh 34 Greenhouse gases 34 IPCC 34 ° Celsius 34 carbon dioxide 33 Greenhouse Gas Emissions 33 carbon dioxide CO2 33 greenhouse gasses 33 emissions 33 Sn 33 2C 33 RE 33 6b 33 Deforestation 32 Little Ice Age 32 CO2 emission 32 Carbon Dioxide 32 NO2 32 º C. 32 ° C. 32 greenhouse gases 32 greenhouse gas emissions 32 carbon dioxide emission 32 7C 32 warming gases 32 reducing carbon emissions 32 greenhouse gas GHG emissions 31 FoE 31 emission reductions 31 burning fossil fuels 31 g km 31 RULE # 31 C# [001] 31 carbon emission 31 reducing CO2 emissions 31 glaciers 31 reduce carbon emissions 31 particulate emissions 31 NOx emissions 31 Fig. 30 carbons 30 5C 30 landfilled 30 ozone depletion 30 depletion 30 #GW [001] 30 carbon dioxide CO2 emissions 30 5a 30 nitrogen oxide emissions 29 ppm 29 water vapor 29 Antarctic ice 29 Fossil fuels 29 degree Celsius 29 Greenland ice 29 Greenhouse Gas 29 deforestation 29 carbon dioxide emitted 29 SO2 29 Cl 29 degree Fahrenheit 29 pollutant emissions 29 mid latitudes 29 6a 28 PETM