�6J�蛴Q�ľ�]�X�߲��k�F+wN��z�y�k2�_��������7�o�Gx����燋���O��_n_߽���An����w���s���駗/�n?�{�w����^}����� >��~���7�~��|�K�t�4|����}${��;2��{���2��G���'2�1���z�^3�{���!z��z_�z�� �Od ��\x���{]h�g�/o�K���^|V{Q�P�E��nz_�^:�_��{����7X�˯������~��������w�u�S{�.Hq�q}���g^_�~�=�.����o�o~�Q�}y�o�˗/�^���"D.������I��E� The cause of the 1998 spike is unresolved, but scientists are currently attributing it to a combination of increased wetland and rice field emissions as well as an increased amount of biomass burning. Oeste, F. D., de Richter, R., Ming, T., and Caillol, S.: Climate engineering by mimicking natural dust climate control: the iron salt aerosol method, Earth Syst. Aerated topsoils are important sinks for atmospheric methane (CH 4) via oxidation by CH 4 -oxidizing bacteria (MOB). Where the soil become waterlogged, such as sometimes happens in winter, the balance shifts from methanotrophs to anaerobic methane producing bacteria (methanogens) and the soil becomes a methane source. h�bbd``b`V�@�q&�P�$X���� &Fa�,�($�3-? This growth continued to rise at a rate of almost 1 percent per year until around 1990 when growth rates dropped to almost zero. [74], A portable methane detector has been developed which, mounted in a vehicle, can detect excess levels of methane in the ambient atmosphere and differentiate between natural methane from rotting vegetation or manure and gas leaks. Volcanoes affect atmospheric methane emissions when they erupt, releasing ash and sulfur dioxide into the air. 1998 was also the warmest year since surface temperatures were first recorded, suggesting that anomalously high temperatures can induce elevated methane emission. These sinks are: the sink from chemical reactions in the atmosphere; and the sink in soils. Atmospheric methane concentrations are of interest because it is one of the most potent greenhouse gases in Earth's atmosphere. Couplings Between Changes in the Climate System and Biogeochemistry", "Annual Greenhouse Gas Index (AGGI) Indicates Sharp Rise in Carbon Dioxide and Methane in 2007", "Climate change could be accelerated by 'methane time bomb, "Sharp rise in methane levels threatens world climate targets", "Fracking boom tied to methane spike in Earth's atmosphere", "Greenhouse Gas Emissions from the Russian Natural Gas Export Pipeline System", "Venting and leaking of methane from shale gas development: response to Cathles et al", "A bridge to nowhere: methane emissions and the greenhouse gas footprint of natural gas", "Methane emissions and climatic warming risk from hydraulic fracturing and shale gas development: implications for policy", "Anthropogenic emissions of methane in the United States", "Large-Scale Controls of Methanogenesis Inferred from Methane and Gravity Spaceborne Data", First active leak of sea-bed methane discovered in Antarctica, "Scientists shocked by Arctic permafrost thawing 70 years sooner than predicted", "Wetter Upper Atmosphere May Delay Global Ozone Recovery", "Manure Management for Small and Hobby Farms", "A field trial of nutrient stimulation of methanotrophs to reduce greenhouse gas emissions from landfill cover soils", "New Tools Pinpoint Natural Gas Leaks, Maximizing a Fuel's Green Qualities", "US environmental group wins millions to develop methane-monitoring satellite", "New satellite to spot planet-warming industrial methane leaks", "Ball and SSL win study contracts for methane emission tracking satellite", "PCF-Based Cavity Enhanced Spectroscopic Sensors for Simultaneous Multicomponent Trace Gas Analysis", "Methane in tundra and oceans to be released in atmosphere", "Methane: A Scientific Journey from Obscurity to Climate Super-Stardom", Methane's Role In Climate Change:Whether natural gas is a savior or destroyer of climate depends on how much is leaking into the atmosphere, Study Suggests EPA May Seriously Underestimate Methane Gas Emissions, Methane Levels Are Rising, and Scientists Don't Know Why, Very Strong Atmospheric Methane Growth in the 4 Years 2014–2017: Implications for the Paris Agreement, Methane emissions from oil and gas exploration are under-reported, Intergovernmental Panel on Climate Change (IPCC), United Nations Framework Convention on Climate Change, Reducing emissions from deforestation and forest degradation, https://en.wikipedia.org/w/index.php?title=Atmospheric_methane&oldid=981252706#Removal_processes, Articles with obsolete information from February 2020, All Wikipedia articles in need of updating, Wikipedia articles needing page number citations from April 2020, All Wikipedia articles needing clarification, Wikipedia articles needing clarification from February 2016, Creative Commons Attribution-ShareAlike License, Methane emissions from industrial activity, Methane emissions from extraction of oil and natural gas from underground reserves, Methane emissions from transportation via pipeline of oil and natural gas, Methane emissions from melting permafrost in Arctic regions, due to global warming which is caused by human use of fossil fuels, This page was last edited on 1 October 2020, at 06:10. 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