Here are some greenhouse gases and their global warming potential (GWP) values:
Carbon dioxide: The GWP for carbon dioxide is 1
Methane: The GWP for methane is 28 for the AR5 and 25 for the AR4
Nitrous oxide: The GWP for nitrous oxide is 265 for the AR5 and 298 for the AR4
Perfluoromethane (tetrafluoromethane): The GWP for perfluoromethane is 6,630 for the AR5 and 6,500 for the AR2
HFC-23: The GWP for HFC-23 is 14,800 for the AR4
HFC-32: The GWP for HFC-32 is 2,100
Sulfur hexafluoride: The GWP for sulfur hexafluoride is 23,500 for the AR5 and 22,800 for the AR4
Nitrogen trifluoride: The GWP for nitrogen trifluoride is 16,100 for the AR5
Tetrafluoromethane (R-14): The 500 year GWP for tetrafluoromethane is 10,587
Hexafluoroethane: The 500 year GWP for hexafluoroethane is 18,200
Global warming is caused by the increase in greenhouse gases in the atmosphere, which is due to human activities like burning fossil fuels, deforestation, and livestock farming
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