Greenhouse gases (GHGs) constitute a group of chemical compounds present in the Earth's atmosphere with the capacity to trap heat, leading to the formation of a natural greenhouse effect. These gases play an important role in the regulation of the planet's temperature. Among the primary greenhouse gases are carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and water vapor (H2O).
Carbon dioxide, primarily released through activities such as the combustion of fossil fuels and deforestation, stands out as the most prevalent GHG and a significant contributor to global warming. Methane, emanating from sources like livestock and natural gas production, is more potent in trapping heat but is found in lower concentrations compared to carbon dioxide. Nitrous oxide, produced as a result of agricultural practices and industrial activities, also plays a role in contributing to climate change.
Greenhouse Gases List
Greenhouse gases possess a fundamental characteristic: they have the ability to absorb radiant energy. The efficacy of this absorption and the duration for which the gas persists in the atmosphere are crucial factors determining the impact of the greenhouse gas. Here is a compilation of significant greenhouse gases:
- Water Vapor (H2O)
- Carbon Dioxide (CO2)
- Methane (CH4)
- Ozone (O3)
- Nitrous Oxide (N2O)
- Chlorofluorocarbon (CFC)
- Hydrochlorofluorocarbon (HCFC)
- Carbon Tetrachloride (CCl4)
- Hydrofluorocarbon (HFC)
- Sulphur Hexafluoride (SF6)
- Nitrogen Trifluoride (NF3)
- Perfluorocarbons (C2F6, CF4)
Greenhouse Gases and Sources
| Greenhouse Gases | Sources |
|---|---|
| Carbon dioxide | Industries, transportation, deforestation, electricity and coal burning. |
| Methane | Agriculture, livestock, coal mining, oil and natural gas industries, waste and landfills. |
| Nitrous oxide | Fuel combustion, agriculture (fertilizers), chemical industries and wastewater treatment. |
| Fluorinated gases | Industries, refrigerants, distribution as well as transmission of electricity. |
For more details read at https://naei.beis.gov.uk/overview/ghg-overview
Greenhouse Gases Effect
The greenhouse effect is the mechanism through which the Earth's surface retains heat due to the presence of "greenhouse gases." These gases act as a protective layer around the planet, preventing the escape of heat into space and thus maintaining a warmer temperature. Key greenhouse gases include carbon dioxide, methane, nitrous oxides, and water vapor (considered a "feedback" gas as it responds to temperature changes).
Scientists have determined that carbon dioxide plays a critical role in stabilizing Earth's atmosphere. If carbon dioxide were to be removed, the terrestrial greenhouse effect would collapse, leading to a significant cooling of Earth's surface by approximately 33°C (59°F).
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