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Greenhouse Gases and Global Warming
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Carbon Dioxide (CO2)
CO2 absorbs infrared radiation and re-emits it in all directions, increasing Earth's surface temperature.
Methane (CH4)
CH4 is more effective than CO2 at trapping heat in the atmosphere, contributing significantly to warming despite its lower concentration.
Nitrous Oxide (N2O)
N2O has a global warming potential 298 times that of CO2 and stays in the atmosphere for a long time, trapping heat.
Fluorinated Gases
These are synthetic gases that include hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride, all having a strong greenhouse effect.
Water Vapor (H2O)
Water vapor is the most abundant greenhouse gas, which amplifies the warming effect of other greenhouse gases.
Ozone (O3)
Tropospheric ozone acts as a greenhouse gas, trapping radiation and contributing to warming of the lower atmosphere.
Chlorofluorocarbons (CFCs)
CFCs are potent greenhouse gases with a high global warming potential, but their use has been reduced due to their role in ozone depletion.
Hydrofluorocarbons (HFCs)
While HFCs don't deplete ozone, they are potent greenhouse gases that can be thousands of times more effective than CO2 at trapping heat.
Perfluorocarbons (PFCs)
PFCs have an even higher global warming potential than CO2 and can persist in the atmosphere for thousands of years.
Sulfur Hexafluoride (SF6)
SF6 is a potent greenhouse gas with a global warming potential many times greater than CO2 and an atmospheric lifetime of over 3,000 years.
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