Methane clathrate

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"Burning ice". Methane, released by heating, burns; water drips. Inset: clathrate structure (University of Göttingen, GZG. Abt. Kristallographie). Source: United States Geological Survey.

Methane clathrate (CH₄•5.75H₂O), also called methane hydrate, hydromethane, methane ice, fire ice, natural gas hydrate, or gas hydrate is a solid clathrate compound (more specifically, a clathrate hydrate) in which a large amount of methane is trapped within a crystal structure of water, forming a solid similar to ice. Originally thought to occur only in the outer regions of the Solar System where temperatures are low and water ice is common, significant deposits of methane clathrate have been found under sediments on the ocean floors of Earth. The worldwide amounts of carbon bound in gas hydrates is conservatively estimated to total twice the amount of carbon to be found in all known fossil fuels on Earth.

• See also: Wikipedia

• Related: Clathrate compound, Clathrate gun hypothesis, Clathrate hydrate, Future energy development

Center for Hydrate Research Center for Hydrate Research hydrates.mines.edu - Web

USGS Geological Research Activities with U.S. Mine... USGS Geological Research Activities with U.S. Minerals Management Service - Methane Gas Hydrates geology.usgs.gov/connections/mms/joint_projects/methane.htm - Web

Methane Hydrates Methane Hydrates www.ornl.gov/info/reporter/no16/methane.htm - Web

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Sustainable energy Sustainable energy www.eee.columbia.edu/.../index.html - Web

Natural gas studies in Canada Natural gas studies in Canada www.gsc.nrcan.gc.ca/.../natural_gas_studies_in_canada.pdf - Web

Are there deposits of methane under the sea? Will ... Are there deposits of methane under the sea? Will global warming release the methane to the atmosphere? www.straightdope.com/columns/070803.html - Web

Methane seeps from Arctic sea bed Methane seeps from Arctic sea bed news.bbc.co.uk/2/hi/science/nature/8205864.stm - Web

All About Hydrates - Necessary Conditions for Meth... All About Hydrates - Necessary Conditions for Methane Hydrate Formation www.netl.doe.gov/.../conditions.htm - Web

Bubbles of warming, beneath the ice Bubbles of warming, beneath the ice www.latimes.com/.../la-na-global-warming-methane22-2009feb22,0,6678890.story - Web

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