Related by context. Frequent words. (Click for all words.) 53 degrees Celsius 53 º C 53 degrees Centigrade 50 #.#C [002] 50 ° C 49 ° Celsius 49 atmospheric CO2 49 degrees Fahrenheit 49 greenhouse emissions 49 degrees centigrade 48 degree centigrade 48 ˚ C 48 gigatonnes 47 warming gases 46 #ppm [001] 46 greenhouse gas concentrations 46 degree Celsius 46 gigatons 46 degrees Celcius 45 atmospheric carbon dioxide 45 greenhouse gas emissions 45 degree Fahrenheit 44 atmospheric concentrations 44 emissions 43 Carbon dioxide emissions 43 deg C 43 greenhouse gases 43 CO2 concentrations 43 greenhouse gas emission reductions 42 ° F 42 emission reductions 42 degrees celsius 42 Kyoto pact 42 º C. 42 degree celsius 42 deg C. 42 halving poverty 41 Kyoto Protocol 41 ozone concentrations 41 carbon dioxide emissions 41 Kyoto treaty 41 mbd 41 heat trapping gases 41 GHGs 41 greenhouse gas emission 40 ozone depletion 40 HCFCs 40 gigawatts GW 40 ozone depleting chemicals 40 GHG reduction 40 climate change 40 industrialized countries 40 global warming 40 reducing carbon emissions 40 Kyoto Protocol expires 40 Kyoto accord 40 Kyoto protocol 40 carbon dioxide emission 40 GHG emissions 40 greenhouse gas GHG emissions 40 Little Ice Age 40 carbon emitter 40 temperatures 40 CO2 emissions 40 carbon emissions 39 halving extreme 39 species extinctions 39 floods droughts 39 megatonnes 39 emission 39 greenhouse warming 39 carbon dioxide CO2 emissions 39 HCFC 39 Kyoto Treaty 39 heat trapping carbon dioxide 39 greenhouse gas emitter 39 Forecasts ranged 39 #F #C [002] 39 interglacial 38 fine particulate 38 evapotranspiration 38 drylands 38 carbon emission reductions 38 ppm 38 global warming gases 38 carbon emission 38 combatting global warming 38 biggest polluter 38 forecast 38 nitrous oxides 38 GHG emission 38 NOx emissions 38 nitrous oxide emissions 38 eradicating extreme 38 Fahrenheit 38 centigrade 38 halving 38 Greenhouse gases 38 temperature 37 Medieval Warm Period 37 Readings above