Methane
Fuel
Australians try to stop sheep burping...so far tested, about half produced much more than average while the other half belched considerably less methane. "The biggest single determinant of methane production in cattle and sheep is the amount of feed they eat. But even once that... In this article: Methane, Australia, Cattle, Global warming, and Carbon dioxide |
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Telegraph.co.uk - All news | 4 hours ago
Scientists 'grow' meat in laboratory
...could reduce greenhouse gas emissions associated with real animals. Meat and dairy consumption is predicted to double by 2050 and methane from livestock is said to currently produce about 18 per cent of the world's greenhouse...
In this article: Sausage, Eindhoven University, Prince Charles, and Netherlands
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Sydney Morning Herald - Business | 7 hours ago
Top prices leave gold producers rolling in the magical stuff
...in trading today? Unlikely. CAMBODIAN FORAY Transol Corp has many strings to its bow, including the recent push into biogenic methane enhancement, which speeds up the natural process of coal seams bleeding off methane. It is one of a...
In this article: BHP Billiton, Coal, Natural gas, OZ Minerals, and US
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BBC News | 7 hours ago
Australia aims for 'green' sheep
...Sheep Cooperative Research Council says 66% of agricultural emissions are released as methane from the gut of livestock. "Ninety per cent of the methane that sheep and cattle and goats produce comes from the rumen, and that's burped...
In this article: Australia, Climate change, Cattle, Flatulence, Goat, Global warming, and Carbon dioxide
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Times Online | 12 hours ago
Australia's answer to global warming - breed a burp free sheep
...of carbon dioxide. But scientists now say the wrong end of the animal has been blamed for the methane out-pourings. "Ninety per cent of the methane that sheep and cattle and goats produce comes from the rumen, and that's burped out,"...
In this article: Global warming, Australia, Cattle, Farting, Goat, Sheep, Climate change, and Carbon footprint
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EurekAlert! - Space and Planetary Science | 15 hours ago
Caltech scientists explain puzzling lake asymmetry on Titan
...(Caltech) suggest that the eccentricity of Saturn's orbit around the sun may be responsible for the unusually uneven distribution of methane and ethane lakes over the northern and southern polar regions of the planet's largest moon, Titan. On...
In this article: Titan, California Institute of Technology, Earth, Saturn, Nature Geoscience, Cassini spacecraft, Hydrocarbon, and Climate change
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Telegraph.co.uk - Earth | 2 days ago
China invests in methane capture
...is one of the most significant of its kind in the world. Taxis and buses in the city also run on methane. Last year, 4.3 billion cubic metres of methane were captured in China, an increase of 26 per cent from 2007, according to Ming Yang, an...
In this article: Coal, China, Beijing, Jincheng, Fossil fuel, and Climate change
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Guardian | 2 days ago
Climate change bill splits Australia's Liberal party
...deal increases financial assistance to major polluters, including electricity generators, and ensures that farmers are not taxed for the methane produced by livestock. The government plan would institute a tax on industries' carbon...
In this article: Climate change, Liberal Party, Kevin Rudd, Australia, Malcolm Turnbull, Tony Abbott, United Nations, and Coal
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USATODAY.com | 4 days ago
Studies: Fighting global warming reduces diseases
...Sao Paulo, Brazil. Meat consumption is a global warming issue because large livestock farms emit large amounts of the potent greenhouse gas methane. Sometimes climate change efforts could add to health problems, such as certain home energy...
In this article: Global warming, Climate change, Carbon dioxide, Delhi, London, Texas, All rights reserved, and Charcoal
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AP Online | 6 days ago
UN says greenhouse gases reach record high in 2008
...those countries were hindering global efforts to curb climate change. The gases - carbon dioxide, or CO2; nitrous oxide, N2O; and methane, CH4 - are produced partly by natural sources, such as wetlands, and partly by human activities such...
In this article: Carbon dioxide, World Meteorological Organization, Nitrous oxide, UN, European Union, Geneva, Climate change, and Global warming
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Centre Daily Times | November 20, 2009
Pa. residents sue gas driller over polluted wells
...her land. Now Farnelli and others are plaintiffs in a lawsuit that alleges Houston-based Cabot Oil & Gas Corp. polluted their wells with methane gas and other contaminants, destroying the value of their homes and threatening their health. A...
In this article: Cabot Oil & Gas Corp., Pennsylvania, Plaintiff, Natural gas, and Leasing
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More on Methane
Description from Wikipedia:
Methane is a chemical compound with the molecular formula . It is the simplest alkane, and the principal component of natural gas. Methane's bond angles are 109.5 degrees. Burning methane in the presence of oxygen produces carbon dioxide and water. The relative abundance of methane and its clean burning process makes it a very attractive fuel. However, because it is a gas at normal temperature and pressure, methane is difficult to transport from its source. In its natural gas form, it is generally transported in bulk by pipeline or LNG carriers; few countries still transport it by truck.
Methane was discovered and isolated by Alessandro Volta between 1776 and 1778 when studying marsh gas from Lake Maggiore.
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.
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. The Earth's crust 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, and livestock (primarily cows) from enteric fermentation.
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