More AGW alarmist losing: Natural methane found on sea floor!!

skookerasbil

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Aug 6, 2009
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Not the middle of nowhere
:banana:Ooooooooooooooooooooooooops!!!!:banana:

More bad news for the climate obsessed bomb throwers and once again, highlighting the point skeptics make all the time.......the science is still very much uncertain.


Scientists have discovered hundreds of natural methane sea-floor seeps that had not been predicted by theory......in fact, their natural existence is a significant problem for most climate theories, as they now have to account for this additional greenhouse gas, naturally produced.

Natural methane plumes found on the sea floor Behind The Black


More prediction fail from the climate community.......a bunch of frauds.:coffee:
 
You don't seem to understand what that means, Billy boy.

The bowels of the earth, due to the warming, have opened up and began to release methane into the sea.

That's pretty bad.

 
The seeps the scientists have found are deep, and the CH4 does not reach the atmosphere. It is processed by methonagens before it reaches surface, unlike the shallow clathrates that are venting in the Arctic.

Extensive methane venting to the atmosphere from sediments of the East Siberian Arctic Shelf. - ResearchGate

ABSTRACT Remobilization to the atmosphere of only a small fraction of the methane held in East Siberian Arctic Shelf (ESAS) sediments could trigger abrupt climate warming, yet it is believed that sub-sea permafrost acts as a lid to keep this shallow methane reservoir in place. Here, we show that more than 5000 at-sea observations of dissolved methane demonstrates that greater than 80% of ESAS bottom waters and greater than 50% of surface waters are supersaturated with methane regarding to the atmosphere. The current atmospheric venting flux, which is composed of a diffusive component and a gradual ebullition component, is on par with previous estimates of methane venting from the entire World Ocean. Leakage of methane through shallow ESAS waters needs to be considered in interactions between the biogeosphere and a warming Arctic climate.

That does not mean that it is harmless.

http://www.nature.com/ngeo/journal/v7/n9/full/ngeo2232.html

Methane emissions from the sea floor affect methane inputs into the atmosphere1, ocean acidification and de-oxygenation2, 3, the distribution of chemosynthetic communities and energy resources. Global methane flux from seabed cold seeps has only been estimated for continental shelves4, at 8 to 65 Tg CH4 yr−1, yet other parts of marine continental margins are also emitting methane. The US Atlantic margin has not been considered an area of widespread seepage, with only three methane seeps recognized seaward of the shelf break. However, massive upper-slope seepage related to gas hydrate degradation has been predicted for the southern part of this margin5, even though this process has previously only been recognized in the Arctic2, 6, 7. Here we use multibeam water-column backscatter data that cover 94,000 km2 of sea floor to identify about 570 gas plumes at water depths between 50 and 1,700 m between Cape Hatteras and Georges Bank on the northern US Atlantic passive margin. About 440 seeps originate at water depths that bracket the updip limit for methane hydrate stability. Contemporary upper-slope seepage there may be triggered by ongoing warming of intermediate waters, but authigenic carbonates observed imply that emissions have continued for more than 1,000 years at some seeps. Extrapolating the upper-slope seep density on this margin to the global passive margin system, we suggest that tens of thousands of seeps could be discoverable.
 

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