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Up to date as of February 08, 2010

From Halopedia, the Halo Wiki

(7 votes)
There is more information available on this subject at Methane on the English-language Wikipedia.

Methane is a chemical compound with the molecular formula CH4. It is the simplest alkane, and the principal component of natural gas. Methane's bond angles are 109.5 degrees. Burning one molecule of methane in the presence of oxygen releases one molecule of CO2 (carbon dioxide) and two molecules of H2O:

CH4 + 2O2 → CO2 + (H2O)2

Methane's relative abundance and clean burning process makes it a very attractive fuel. However, because it is a gas (at normal temperature and pressure; see STP), methane is difficult to transport from its source. In its natural gas form, it is generally transported in bulk by pipe or LNG carriers.

Methane is a relatively potent greenhouse gas with a high global warming potential of 72 (averaged over 20 years) or 25 (averaged over 100 years). Methane in the atmosphere is eventually oxidized, producing carbon dioxide and water. As a result, methane in the atmosphere has a half life of seven years (every seven years, the amount of methane halves).

The abundance of methane in the Earth's atmosphere in 1998 was 1745 parts per billion, up from 700 ppb in 1750. In the same time period, CO2 increased from 278 to 365 parts per million. The radiative forcing effect due to this increase in methane abundance is about one-third of that of the CO2 increase. In addition, there is a large, but unknown, amount of methane in methane clathrates in the ocean floors. Global warming could release this methane, which could cause a further sharp rise in global temperatures. Such releases of methane may have been a major factor in previous major extinction events. The Earth's crust also contains huge amounts of methane. Large amounts of methane are produced anaerobically by methanogenesis. Other sources include mud volcanoes which are connected with deep geological faults.

The only known species that uses methane instead of oxygen in respiration are the Grunts. The Grunt's home planet, Balaho has an atmosphere which is mostly methane. In all of the Halo games, they can be seen with breathing apparatus, because most of the battlefields they are stationed at do not have sufficient methane. Methane is highly flammable, this may explain the fact that they sometimes explode in the Halo Novels when they are shot.

While methane is needed for a Grunt to live, Grunts enjoy another gas, Benzene, as a drug, calling it "lovely lung gold" and "Sacred aromatic".


This article uses material from the "Methane" article on the Halo wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.


Up to date as of February 04, 2010

From Wookieepedia, the Star Wars wiki.

Methane was a gas that could be found in many atmospheres of planets in the galaxy, and sometimes in solid ice form or even liquid lakes and oceans. It could even be found on asteroids, as was detected in some in the Kashyyyk system.[1]

Notable planets with methane included Skako, Esfandia, Farstine, Morseer, Zaur, and Rue, as well as coating asteroids in the Crispin asteroid field.

It was used for many purposes, such as powering boats on Chadra. Drackmarian and Morseerian were both methane breathing species.

I find your lack of sources disturbing.

This article needs to be provided with more sources and/or appearances to conform to a higher standard of article quality.



  • Star Wars Galaxies
  • Tall Tales (Mentioned only)
  • X-wing: Wraith Squadron (Mentioned only)
  • The Courtship of Princess Leia (First appearance)
  • X-wing: Isard's Revenge (Mentioned only)
  • Edge of Victory I: Conquest (Mentioned only)
  • Edge of Victory II: Rebirth
  • Dark Nest II: The Unseen Queen (Mentioned only)


Notes and references

See also

This article uses material from the "Methane" article on the Starwars wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.


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