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    Gas hydrate dissociation prolongs acidification of the Anthropocene oceans

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    Author
    Boudreau, Bernard P.; Luo, Yiming; Meysman, Filip J.R.; Middelburg, Jack J.; Dickens, Gerald R.
    Date
    2015
    Abstract
    Anthropogenic warming of the oceans can release methane (CH4) currently stored in sediments as gas hydrates. This CH4 will be oxidized to CO2, thus increasing the acidification of the oceans. We employ a biogeochemical model of the multimillennial carbon cycle to determine the evolution of the oceanic dissolved carbonate system over the next 13 kyr in response to CO2 from gas hydrates, combined with a reasonable scenario for long-term anthropogenic CO2 emissions. Hydrate-derived CO2 will appreciably delay the neutralization of ocean acidity and the return to preindustrial-like conditions. This finding is the same with CH4 release and oxidation in either the deep ocean or the atmosphere. A change in CaCO3 export, coupled to CH4 release, would intensify the transient rise of the carbonate compensation depth, without producing any changes to the long-term evolution of the carbonate system. Overall, gas hydrate destabilization implies a moderate additional perturbation to the carbonate system of the Anthropocene oceans.
    Citation
    Boudreau, Bernard P., Luo, Yiming, Meysman, Filip J.R., et al.. "Gas hydrate dissociation prolongs acidification of the Anthropocene oceans." Geophysical Research Letters, 42, no. 21 (2015) Wiley: 9337-9344A. http://dx.doi.org/10.1002/2015GL065779.
    Published Version
    http://dx.doi.org/10.1002/2015GL065779
    Type
    Journal article
    Publisher
    Wiley
    Citable link to this page
    https://hdl.handle.net/1911/90561
    Rights
    Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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    • Earth, Environmental and Planetary Sciences Publications [232]
    • Faculty Publications [4990]

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    Home | FAQ | Contact Us | Privacy Notice | Accessibility Statement
    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map