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Greenhouse gases - Coggle Diagram
Greenhouse gases
Carbon Dioxide
Atmospheric carbon dioxide derives from multiple natural sources including volcanic outgassing, the combustion of organic matter, and the respiration processes of living aerobic organisms.
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Man-made sources of carbon dioxide come mainly from the burning of various fossil fuels for power generation and transport use.
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Water Vapor
Because CO2 is not capable of causing significant global warming by itself, their contention is that increased CO2 raises temperature slightly and that produces an increase in water vapor, which does have the capability of raising atmospheric temperature. If that is indeed the case, then as CO2 rises, we should observe a concomitant increase in water vapor.
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Nitrous Oxide
Nitrous oxide is prepared on an industrial scale by careful heating of ammonium nitrate at about 250 C, which decomposes into nitrous oxide and water vapour.
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The decomposition of ammonium nitrate is also a common laboratory method for preparing the gas. Equivalently, it can be obtained by heating a mixture of sodium nitrate and ammonium sulfate.
Sulfur Hexafluoride
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Some other sulfur fluorides are cogenerated, but these are removed by heating the mixture to disproportionate any disulfur decafluoride (which is highly toxic) and then scrubbing the product with Sodium hydroxide to destroy remaining sulfur tetrafluoride
Methane
Large amounts of methane are emitted to the atmosphere through mud volcanoes which are connected with deep geological faults or as the main constituent of biogas formed naturally by anaerobic digestion.
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