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The Domestic Prosperity and Global Freedom Act () would direct the United States Department of Energy (DOE) to issue a decision on an application for authorization to export natural gas within 90 days after the later of: (1) the end of the comment period for that decision as set forth in the Federal Register, or (2) the date of enactment of this Act.〔 The bill was introduced into the United States House of Representatives during the 113th United States Congress. ==Background== (詳細はfossil fuel formed when layers of buried plants, gases, and animals are exposed to intense heat and pressure over thousands of years. The energy that the plants originally obtained from the sun is stored in the form of chemical bonds in natural gas. Natural gas is a nonrenewable resource because it cannot be replenished on a human time frame.〔(【引用サイトリンク】title=electricity from natural gas )〕 Natural gas is a hydrocarbon gas mixture consisting primarily of methane, but commonly includes varying amounts of other higher alkanes and even a lesser percentage of carbon dioxide, nitrogen, and hydrogen sulfide. Natural gas is an energy source often used for heating, cooking, and electricity generation. It is also used as fuel for vehicles and as a chemical feedstock in the manufacture of plastics and other commercially important organic chemicals. Natural gas is found in deep underground rock formations or associated with other hydrocarbon reservoirs in coal beds and as methane clathrates. Petroleum is another resource and fossil fuel found in close proximity to, and with natural gas. Most natural gas was created over time by two mechanisms: biogenic and thermogenic. Biogenic gas is created by methanogenic organisms in marshes, bogs, landfills, and shallow sediments. Deeper in the earth, at greater temperature and pressure, thermogenic gas is created from buried organic material.〔US Geological Survey, (Organic origins of petroleum )〕〔(US Energy Information Administration )〕 Before natural gas can be used as a fuel, it must be processed to remove impurities, including water, to meet the specifications of marketable natural gas. The by-products of this processing include ethane, propane, butanes, pentanes, and higher molecular weight hydrocarbons, hydrogen sulfide (which may be converted into pure sulfur), carbon dioxide, water vapor, and sometimes helium and nitrogen. The world's first industrial extraction of natural gas started at Fredonia, New York, USA in 1825.〔http://www.aapg.org/explorer/2011/09sep/natgashist0911.cfm〕 By 2009, 66 trillion cubic meters (or 8%) had been used out of the total 850 trillion cubic meters of estimated remaining recoverable reserves of natural gas.〔http://www.worldenergyoutlook.org/media/weowebsite/2009/WEO2009.pdf〕 Based on an estimated 2015 world consumption rate of about 3.4 trillion cubic meters of gas per year, the total estimated remaining economically recoverable reserves of natural gas would last 250 years.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Domestic Prosperity and Global Freedom Act」の詳細全文を読む スポンサード リンク
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