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METHANE TO MARKETS

机译:甲烷市场

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The USA has accepted that human activities are causing global warming. Global temperatures could rise by up to 6℃ in the 21st century, which would lead to an 88cm (3ft) sea level rise, threatening 100 million people. Greenhouse gases (GHG) have increased 10 percent since 1990. The USA has not signed the 1997 Kyoto Protocol for a 5.2 percent reduction in GHG below 1990 levels by 2008-12. It is, however, now focusing on methane. Carbon dioxide is the main GHG emitted, followed by methane -a hydrocarbon that is the primary component of natural gas. It is a short-lived GHG with an atmospheric lifetime of approximately 12 years compared to over 100 years for carbon dioxide. Also, methane is 23 times more potent as a GHG, kilogram for kilogram, than carbon dioxide. The balance of the input rate and the removal rate determines atmospheric concentrations of GHG. There will be a greater impact by concentrating on methane in the medium-term because it is shortlived and has a high global warming potential (GWP).
机译:美国已经接受人类活动正在导致全球变暖。在21世纪,全球温度可能会上升6℃,这将导致海平面上升88厘米(3英尺),威胁到1亿人。自1990年以来,温室气体(GHG)增长了10%。美国尚未签署1997年《京都议定书》,到2008-12年温室气体排放量要比1990年降低5.2%。但是,现在集中在甲烷上。二氧化碳是排放的主要温室气体,其次是甲烷,后者是天然气的主要成分。它是短寿命的温室气体,大气寿命约为12年,而二氧化碳的寿命超过100年。此外,甲烷的温室效应(千克/千克)是二氧化碳的23倍。输入速率和去除速率的平衡决定了大气中GHG的浓度。中期集中关注甲烷将产生更大的影响,因为它寿命短且具有较高的全球变暖潜能(GWP)。

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