Well not at all actually Another beat up by alarmist screaming...

  1. 15,273 Posts.
    Well not at all actually


    Another beat up by alarmist screaming from the top of the world "just you wait"  till the methane release happens.

    Phfff.  Sorry to disappoint some far left greenies here.  The world will survive!.

    2 papers in short succession.  WOW

    From the UNIVERSITY OF ROCHESTER comes this study that backs up a study that we reported on just a few days ago about methane clathrates on the ocean floor. The so-called Arctic “methane bomb” that some off the rails climate scientists have been worrying about just isn’t going to happen.

    Abstract
    In response to warming climate, methane can be released to Arctic Ocean sediment and waters from thawing subsea permafrost and decomposing methane hydrates. However, it is unknown whether methane derived from this sediment storehouse of frozen ancient carbon reaches the atmosphere. We quantified the fraction of methane derived from ancient sources in shelf waters of the U.S. Beaufort Sea, a region that has both permafrost and methane hydrates and is experiencing significant warming. Although the radiocarbon-methane analyses indicate that ancient carbon is being mobilized and emitted as methane into shelf bottom waters, surprisingly, we find that methane in surface waters is principally derived from modern-aged carbon. We report that at and beyond approximately the 30-m isobath, ancient sources that dominate in deep waters contribute, at most, 10 ± 3% of the surface water methane. These results suggest that even if there is a heightened liberation of ancient carbon–sourced methane as climate change proceeds, oceanic oxidation and dispersion processes can strongly limit its emission to the atmosphere.

    and this last week

    So much for the ‘methane bomb’ – study finds methane hydrate dissociation…’not caused by climate change’


    Methane hydrate dissociation off Spitsbergen not caused by climate change
    Study identifies post-glacial processes as main reason

    “Our investigations show that uplift of the sea floor in this region caused by the melting of the ice masses since the end of the last ice age is probably the reason for the dissolution of methane hydrate, which is already ongoing for several thousand years,” explains Prof. Dr. Klaus Wallmann, first author of the study by GEOMAR Helmholtz Centre for Ocean Research Kiel. “The region has raised more than the sea level has risen, causing a pressure relief, so that the methane hydrates dissociate at the stability limit,” Wallmann continues.
 
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