methane

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Importance of Methane | US EPA
Methane (CH 4 ) is a hydrocarbon that is a primary component of natural gas . Methane is also a greenhouse gas (GHG), so its presence in the atmosphere affects the earth's temperature and climate system. Methane is emitted from a variety of anthropogenic (human-influenced) and natural sources. www.epa.gov
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Methane - Wikipedia
It is a group-14 hydride, the simplest alkane, and the main constituent of natural gas. The abundance of methane on Earth makes it an economically attractive ... en.wikipedia.org
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Methane | Vital Signs – Climate Change - NASA
Methane is a powerful heat-trapping gas. An estimated 60% of today's methane emissions are the result of human activities. climate.nasa.gov
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methane
methane Chem. (ˈmɛθeɪn, ˈmiːθeɪn) Also -an. [f. methyl) + -ane.] Light carburetted hydrogen, methyl hydride or marsh-gas (CH4), a colourless odourless gas emanating from stagnant pools, volcanoes, petroleum wells, and esp. from coal-seams, in which, mixed with seven or eight parts of air, it forms a... Oxford English Dictionary
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Methane | Definition, Properties, Uses, & Facts - Britannica
Methane, colorless, odorless gas that occurs abundantly in nature and as a product of certain human activities. Methane is the simplest ... www.britannica.com
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Methane: A crucial opportunity in the climate fight
Cutting methane emissions is the fastest opportunity we have to immediately slow the rate of global warming, even as we decarbonize our energy systems. www.edf.org
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What is methane and why is it a safety concern? - USGS.gov
Methane (a gas composed of carbon and hydrogen) is produced two ways: Through biologic decomposition of organic matter at shallow depths. www.usgs.gov
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Methane - UCAR Center for Science Education
Methane is gas that is found in small quantities in the atmosphere. Methane is the simplest hydrocarbon, consisting of one carbon atom and four hydrogen ... scied.ucar.edu
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Methane | CH4 | CID 297 - PubChem
Methane is a colorless odorless gas. It is also known as marsh gas or methyl hydride. It is easily ignited. The vapors are lighter than air. pubchem.ncbi.nlm.nih.gov
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Facts about Methane | UNEP - UN Environment Programme
Methane (CH4), the primary component of natural gas, is responsible for approximately a third of the warming we are experiencing today. www.unep.org
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methane
methane/ˈmi:θeɪn; `mɛθen/ n[U](also marsh gas) odourless, colourless, inflammable gas that occurs in coalmines and in marshes 甲烷; 沼气. Cf 参看 firedamp (fire1). 牛津英汉双解词典
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More Methane from the Deep Sea: Mud volcanos as methane source
There are over 1000 known mud volcanoes on land, and a growing number, such as the Haakon Mosby Mud Volcano, are found in the sea, between 200 and 4000 meters depth. Scientists estimated that submarine volcanoes emit 27 million tons of methane—about 5 percent of the global emission.
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Methane clathrate
Methane clathrate (CH4·5.75H2O) or (8CH4·46H2O), also called methane hydrate, hydromethane, methane ice, fire ice, natural gas hydrate, or gas hydrate, One litre of fully saturated methane clathrate solid would therefore contain about 120 grams of methane (or around 169 litres of methane gas at 0 °C and wikipedia.org
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