CO2 duration stay is variable approximately 200450 years and its global warming potential GWP is def

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• CO2 duration stay is variable (approximately
  200-450 years) and its global warming potential
  (GWP) is defined as 1.
• Methane duration stay is 12 /- 3 years and a GWP
  of 22 (meaning that it has 22 times the warming
  ability of carbon dioxide)
• Nitrous oxide has a duration stay of 120 years
  and a GWP of 310
• CFC-12 has a duration stay of 102 years and a GWP
  between 6200 and 7100
• HCFC-22 has a duration stay of 12.1 years and a
  GWP between 1300 and 1400
• Tetrafluoromethane has a duration stay of 50,000
  years and a GWP of 6500
• Sulfur hexafluoride has a duration stay of 3,200
  years and a GWP of 23900.