Breeding ground for methane hydrates: The sea floor

  • metta

    Posts: 39104

    Nov 19, 2012 8:21 AM GMT
    Breeding ground for methane hydrates: The sea floor

    http://worldoceanreview.com/en/energy/methane-hydrates/
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    Nov 19, 2012 3:01 PM GMT
    The ocean farts?
  • Medjai

    Posts: 2671

    Nov 19, 2012 3:09 PM GMT
    So at high pressures, the ocean has found a way to trap carbon. This is good for us... Shows hope to the iron fertilization theories.

    It's not surprising that methane is so common. It was the original greenhouse gas, before life even used oxygen in respiration. But it is a very, very effective greenhouse gas, many times better than carbon dioxide. So lets hope it stays trapped.
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    Nov 19, 2012 5:46 PM GMT
    Er... yeah. That was news twenty years ago.

    But not quite stated right. Methane clathrates form within a fairly narrow window of pressure and temperature. So only along continental margins. And since P&T vary over time, they're a relatively short-term reservoir, in geological time.

    As far as carbon sinks go, formation of carbonates on the margins, driven by weathering of continental rocks (and subsequent export to the ocean, through rivers) is much more significant. But not as exciting as rocks that burn.