Which greenhouse gas remains in the atmospheric the shortest?
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Answer:
Average residence time of carbon dioxide is 30-95 years, methane 12 years, CFC is 45 years and nitrous oxides is 114 years.
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Answer:
Greenhouse Gases: How Long Will They Last?
Greenhouse Gas Lifetime (Years) 100-Year GWP
Carbon Dioxide (CO2) hundreds 1
Methane (CH4) 12 25
Nitrous Oxide (N2O) 114 298
Hydrofluorocarbon-23 (CHF3) 264 14,800
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